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45 Highlights 51 Differences 7 Reactions 0 Likes
ViewSonic PX748-4K vs Optoma UHD38: 45 Highlights & 51 Differences — So, Which Projector Actually Works Better
Find out which model offers the features that match your viewing needs and budget. What sets ViewSonic PX748-4K and Optoma UHD38 apart? We looked at their product type, native resolution, throw ratio & lens material and key differences in this complete projectors face-off.
Image Scaling Engine Type: Advanced Defines the scaling engine used to upscale lower-resolution content to the projector’s native resolution. with 35 points higher
Color Wheel Speed (for DLP): 8x+ Defines the rotational speed of the DLP color wheel, affecting color accuracy and rainbow artifact reduction. with 20 points higher
ViewSonic PX748-4K Versus Optoma UHD38: A Deep Dive Into 4K Home Theater Projectors
If you're on the hunt for a high-quality 4K DLP projector for your home theater setup, the ViewSonic PX748-4K and Optoma UHD38 stand out as two compelling options. Both projectors deliver native 4K resolution enhanced by pixel-shifting technology, capable of producing screen sizes up to an impressive 300 inches. They share common traits such as manual focus, Dolby Audio support, and a lack of built-in streaming apps or wireless connectivity. However, beneath these surface similarities lie notable differences in optical quality, connectivity, throw distances, and power efficiency that can influence your ultimate choice.
Strengths of the ViewSonic PX748-4K: Precision and Practicality
The PX748-4K impresses with its robust glass lens, which offers enhanced durability and potentially crisper image clarity over typical plastic alternatives. Its lens material is a standout in this regard. The projector boasts a shorter throw ratio of 1.0-1.5, making it more versatile for smaller rooms or tighter installation spaces. Additionally, it delivers strong brightness output rated at 4000 lumens, ensuring vibrant images even in ambient light.
While lacking the advanced image processing of some competitors, the PX748-4K's pixel-shifting effectively enhances resolution without artificial frame interpolation, preserving image integrity. It supports multiple color temperature presets; Warm, Neutral, and Cool; empowering users to tailor visuals to their preference.
On the connectivity front, it has reliable HDMI and USB-C inputs alongside a standard 3.5mm audio output. The projector also benefits from auto source detection and user-friendly, icon-based menu navigation that makes setting adjustments straightforward.
The PX748-4K supports both tabletop and ceiling mounting options, and its operating temperature range starts lower than the UHD38, down to 32°F. Plus, it comes with an extended warranty and global service availability, offering peace of mind for its users.
For those interested, the $1099.99 at BestBuy makes this projector a cost-effective option without compromising core performance essentials.
Why Optoma UHD38 Stands Out: Advanced Processing and Connectivity
The Optoma UHD38 excels in producing a highly uniform image, thanks to its high light uniformity rating. This feature becomes crucial when displaying larger images, ensuring brightness and color consistency across the entire screen. Its advanced image scaling engine provides smoother visuals and better detail enhancement than standard scaling found in many projectors.
The UHD38's optical assembly uses a plastic lens, but compensates by running a color wheel speed over 8x; faster than the PX748-4K's 6x speed; potentially delivering richer color performance and reduced rainbow effect for DLP enthusiasts. It features a wider throw ratio of 1.5-2.5+, which suits larger rooms where the projector can be positioned farther from the screen.
Connectivity options are more extensive on the UHD38, offering both VGA and optical audio out ports in addition to 3.5mm audio, which is handy for integrating into advanced A/V setups. The remote control benefits from a backlit design for easier use in darkened rooms, and input switching speeds are quicker at about 2 seconds.
The UHD38 supports an eco mode that cuts power consumption by around 20%, contributing to better energy efficiency during extended viewing sessions. It also has worldwide service availability with an extended warranty, ensuring support regardless of where it's used.
Priced between $1199 and $1499 at Amazon, the UHD38 targets buyers willing to invest a bit more for enhanced image processing and connectivity features.
Quick Take
The ViewSonic PX748-4K offers a sharper glass lens and brighter image output with a flexible short throw ratio, making it a practical and budget-friendly 4K home projector. Meanwhile, the Optoma UHD38 provides superior brightness uniformity, enhanced image scaling, and more diverse audio/video connections, accommodating more complex home theater configurations.
Closing Recommendation
For most users prioritizing value, ease of setup, and strong core optics, the ViewSonic PX748-4K is the smarter pick. However, those seeking richer image processing, better light uniformity, and wider connectivity options should consider the Optoma UHD38 despite its higher price and longer throw distance.
Verdict
Winner: ViewSonic PX748-4K - Combines excellent brightness, a durable glass lens, and cost-effectiveness with flexible placement options.
Runner-up: Optoma UHD38 - Excels in image uniformity, advanced scaling, and robust connectivity but at a premium price and a larger throw footprint.
Side by side. The numbers. The features. No drama.
Whether you’re leaning toward ViewSonic PX748-4K or tempted by Optoma UHD38, this full projectors breakdown lays out their differences clearly. From highlights to hidden quirks, we’ve compared them all — so you don’t have to.
What is the projection technology type of this projector?
57 ViewSonic PX748-4K 0Votes DLP
57 Optoma UHD38 0Votes DLP
vs Projection Technology Type
Both ViewSonic PX748-4K and Optoma UHD38 utilize DLP projection technology, which is known for sharp image quality.
Identifies the core imaging technology used.
In the battle of Projection Technology Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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The Build Material for ViewSonic PX748-4K and Optoma UHD38 is Plastic, suggesting a similar construction material for durability and weight.
Specifies the main construction material of the chassis.
In the battle of Build Material, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Release Year
What is the release year of this projector?
67 ViewSonic PX748-4K 0Votes 2021
67 Optoma UHD38 0Votes 2021
ViewSonic PX748-4K
This product was released in the year 2021, reflecting recent technology and features available at that time.
Optoma UHD38
This projector model was released in the year 2021, reflecting its modern features and technology.
Shows the year the projector model was released.
In the battle of Release Year, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Imaging Chip Type
What is the imaging chip type of this projector?
82 ViewSonic PX748-4K 0Votes DLP Chip
82 Optoma UHD38 0Votes DLP Chip
ViewSonic PX748-4K
The imaging chip uses DLP technology, which projects images with high contrast and excellent color accuracy.
Optoma UHD38
It uses a Digital Light Processing (DLP) chip, which is popular for its sharp image and reliability.
Indicates the chip architecture that forms the image.
In the battle of Imaging Chip Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Imaging Chip Size
What is the imaging chip size of this projector?
0.47 inch 0Votes
0.47 inch 0Votes
vs Imaging Chip Size
Both ViewSonic PX748-4K and Optoma UHD38 use an imaging chip size of 0.47 inch, indicating comparable chip dimensions.
Specifies the size of the imaging chip. Larger chips generally improve performance.
In the battle of Imaging Chip Size, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 0.47 inch measurement.
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Intended Usage Type
What is the intended usage type of this projector?
80 ViewSonic PX748-4K 0Votes Home Theater, Gaming
80 Optoma UHD38 0Votes Home Theater, Gaming
Optoma UHD38
Intended usage is home theater and gaming, reflecting suitability for entertainment and fast response needs.
Describes the ideal application for this projector.
In the battle of Intended Usage Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Country of Manufacture
What is the country of manufacture for this projector?
77 ViewSonic PX748-4K 0Votes China
77 Optoma UHD38 0Votes China
Indicates where the projector was manufactured.
In the battle of Country of Manufacture, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Neither ViewSonic PX748-4K nor Optoma UHD38 include frame interpolation, so motion smoothing is not supported on either model.
Allows smoother motion for sports and fast scenes.
In the battle of Frame Interpolation, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Peak ANSI Lumens
What is the peak ANSI lumens of this projector?
4,000 lumen 0Votes
4,000 lumen 0Votes
ViewSonic PX748-4K
The peak ANSI lumens is 4000 lumens, confirming excellent brightness for clear viewing even in rooms with ambient light.
Optoma UHD38
Peak ANSI brightness is 4000 lumens, confirming strong output in various lighting conditions.
Industry-standard brightness measurement using ANSI method.
In the battle of Peak ANSI Lumens, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 4,000.00 lumen measurement.
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Dynamic Lumens
What is the dynamic lumens rating?
4,000 lumen 0Votes
4,000 lumen 0Votes
ViewSonic PX748-4K
Dynamic lumens rating is 4000 lumens, meaning the projector can adjust brightness dynamically to optimize image quality under varying ambient lighting conditions.
Optoma UHD38
With a brightness of 4000 lumens, this projector provides a strong light output suitable for well-lit rooms and large venues.
Measures boosted brightness in enhanced dynamic modes.
In the battle of Dynamic Lumens, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 4,000.00 lumen measurement.
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Color Gamut Coverage
What is the color gamut coverage?
100 % 0Votes
100 % 0Votes
ViewSonic PX748-4K
The projector supports 100% color gamut coverage, producing vibrant and accurate colors that closely match the original content.
Optoma UHD38
Color gamut coverage is 100%, ensuring vibrant and accurate color reproduction.
Indicates percent coverage of color spaces such as Rec.709 or DCI-P3.
In the battle of Color Gamut Coverage, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 100.00 % measurement.
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Maximum Supported Resolution
What is the maximum supported resolution of this projector?
77 ViewSonic PX748-4K 0Votes 4K
77 Optoma UHD38 0Votes 4K
Optoma UHD38
The maximum supported resolution is 4K, providing sharp and detailed images.
The highest resolution signal the projector can accept.
In the battle of Maximum Supported Resolution, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Dynamic Contrast Ratio
Deep dynamic contrast at :val.
0 ViewSonic PX748-4K 0Votes 12,000:1
0 Optoma UHD38 0Votes 1,000,000:1
ViewSonic PX748-4K
The dynamic contrast ratio is 12,000:1, which helps deliver a wider range of dark and bright details in the image.
What is the dynamic contrast ratio?
In the battle of Dynamic Contrast Ratio, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Color Bit Depth
What is the color bit depth?
10 bit 0Votes
10 bit 0Votes
Optoma UHD38
Color bit depth is 10 bit, providing rich and smooth color gradation for accurate images.
Determines how finely color gradients are rendered.
In the battle of Color Bit Depth, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 10.00 bit measurement.
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HDR Format Support
What HDR formats does this projector support?
42 ViewSonic PX748-4K 0Votes HDR10, HLG
42 Optoma UHD38 0Votes HDR10, HLG
Optoma UHD38
HDR formats supported include HDR10 and HLG, enhancing contrast and color range with compatible content.
Specifies which HDR formats the projector can display.
In the battle of HDR Format Support, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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HDR Peak Brightness
What is the HDR peak brightness?
4,000 lumen 0Votes
4,000 lumen 0Votes
ViewSonic PX748-4K
The projector delivers a brightness of 4000 lumens, which is suitable for well-lit rooms and larger projection surfaces, ensuring vivid and clear images.
How bright the projector can go during HDR highlights.
In the battle of HDR Peak Brightness, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 4,000.00 lumen measurement.
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Refresh Rate
What is the refresh rate?
240 Hz 0Votes
240 Hz 0Votes
Optoma UHD38
The refresh rate is 240 Hz, an excellent spec for smooth motion and low latency especially in gaming.
Determines motion smoothness for gaming and video.
In the battle of Refresh Rate, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 240.00 Hz measurement.
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Contrast Ratio
What is the contrast ratio of this projector?
0 ViewSonic PX748-4K 0Votes 12,000:1
0 Optoma UHD38 0Votes 1,000,000:1
Represents the difference between the darkest black and brightest white produced by the projector.
In the battle of Contrast Ratio, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Motion Processing Type
Smooth motion processing with level :val.
0 ViewSonic PX748-4K 0Votes Not Specified
7 Optoma UHD38 0Votes 0–1 (Minimal)
What is the motion processing level?
In the battle of Motion Processing Type, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 7 score measurement.
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Sharpness Enhancement Type
Crisp detail with sharpness level :val.
0 ViewSonic PX748-4K 0Votes Not Specified
27 Optoma UHD38 0Votes 0–1 (Minimal)
vs Sharpness Enhancement Type
ViewSonic PX748-4K has Not Specified sharpness enhancement type, while Optoma UHD38 uses a minimal sharpness enhancement of 0–1, possibly offering slight clarity improvement.
What is the sharpness enhancement level?
In the battle of Sharpness Enhancement Type, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 27 score measurement.
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ViewSonic PX748-4K has a throw ratio of 1.0–1.5 (Standard) while Optoma UHD38 has a longer throw ratio of 1.5–2.5+, making the ViewSonic better suited for shorter projection distances.
What is the throw ratio?
In the battle of Throw Ratio, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 20 score measurement.
Based on community votes for Throw Ratio, ViewSonic PX748-4K ◉ earned 0 votes, less than Optoma UHD38 ◉, which got 1 votes.
Does this projector support ultra short throw projection?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
vs Ultra Short Throw
Neither ViewSonic PX748-4K nor Optoma UHD38 are ultra short throw projectors, implying they require a standard throw distance.
Indicates whether the projector can project large images at extremely short distances.
In the battle of Ultra Short Throw, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Minimum Throw Distance
What is the minimum throw distance?
3.3 ft 0Votes
3.9 ft 0Votes
ViewSonic PX748-4K
The minimum throw distance is 3.3 feet (1.0 meter), which defines how close the projector can be placed to the screen and still produce a focused image.
Optoma UHD38
The minimum throw distance is 3.9 feet (1.19 meters), meaning the projector must be placed at least this far from the screen.
Closest usable distance between projector and screen.
In the battle of Minimum Throw Distance, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering lower 0.6 ft measurement.
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Maximum Throw Distance
What is the maximum throw distance?
32.8 ft 0Votes
32.8 ft 0Votes
Optoma UHD38
The maximum throw distance is 32.8 feet (10.0 meters), allowing placement flexibility for large venues.
Maximum distance at which the projector can achieve a proper image.
In the battle of Maximum Throw Distance, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 32.80 ft measurement.
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Keystone Correction Vertical
What is the vertical keystone correction?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
40 degree 0Votes
Optoma UHD38
Vertical keystone correction up to ±40 degrees allows flexible projector placement off-axis with minimized distortion.
Vertical angle adjustment to correct image distortion.
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Optical Zoom Level
High-quality optical zoom at :valx.
42 ViewSonic PX748-4K 0Votes 1.3x
17 Optoma UHD38 0Votes 1.1x (Entry)
Optoma UHD38
The optical zoom level is entry level at 1.1x, suitable for basic size adjustments without lens shifting.
What is the optical zoom level?
In the battle of Optical Zoom Level, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 25 score measurement.
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Screen Size Minimum
What is the minimum supported screen size?
30 inch 0Votes
33 inch 0Votes
Optoma UHD38
The minimum screen size supported is 33 inches (83.82 cm), suitable for relatively small viewing areas.
Smallest supported diagonal projection size.
In the battle of Screen Size Minimum, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering lower 3.0 inch measurement.
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Projection Alignment Type
What is the projection alignment type?
47 ViewSonic PX748-4K 0Votes Tabletop
52 Optoma UHD38 0Votes Front,Tabletop
Optoma UHD38
This projector is designed for front projection on tabletop setups, which is the most common arrangement for home use.
Describes how the projector aligns with the screen.
In the battle of Projection Alignment Type, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 5 score measurement.
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Keystone Correction Horizontal
What is the horizontal keystone correction?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Horizontal angle adjustment to correct image distortion.
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Auto Keystone
Does this projector support auto keystone?
Yes 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Automatically corrects keystone distortion.
In the battle of Auto Keystone, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 40 score measurement.
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Lens Shift Vertical
What is the vertical lens shift?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Vertical lens movement for distortion-free positioning.
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Lens Shift Horizontal
What is the horizontal lens shift?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Horizontal lens movement to fine-tune placement.
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Digital Zoom Level
Useful zoom reaching :valx.
42 ViewSonic PX748-4K 0Votes 1.3x
67 Optoma UHD38 0Votes 1.1x–1.5x (Moderate)
What is the digital zoom level?
In the battle of Digital Zoom Level, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 25 score measurement.
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The Lens Material for ViewSonic PX748-4K is Glass, whereas Optoma UHD38 uses Plastic, with glass typically offering better durability and image clarity.
Indicates the primary material used in the projector lens.
In the battle of Lens Material, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 40 score measurement.
Based on community votes for Lens Material, ViewSonic PX748-4K ◉ earned 1 votes, more than Optoma UHD38 ◉, which got 0 votes.
Neither ViewSonic PX748-4K nor Optoma UHD38 feature a dustproof lens design, which may require careful placement to avoid dust accumulation.
Specifies whether the lens is designed to resist dust intrusion.
In the battle of Dustproof Lens Design, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Both ViewSonic PX748-4K and Optoma UHD38 do not support lens replacement compatibility, indicating fixed lens systems.
Indicates whether the projector's lens can be replaced or upgraded.
In the battle of Lens Replacement Compatibility, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Lens Coating Type
What is the lens coating type?
87 ViewSonic PX748-4K 0Votes Anti-Reflective
87 Optoma UHD38 0Votes Anti-Reflective
Optoma UHD38
The lens features an anti-reflective coating that helps reduce light loss and glare, improving image clarity.
Defines special coatings that enhance optical performance.
In the battle of Lens Coating Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Auto Focus
Does this projector support auto focus?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates whether the projector can automatically adjust focus.
In the battle of Auto Focus, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Manual Focus Range
What is the manual focus range?
62 ViewSonic PX748-4K 0Votes Standard manual focus ring
62 Optoma UHD38 0Votes Manual focus ring adjustment
Indicates the distance range manual focus can adjust for.
In the battle of Manual Focus Range, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Lens Motor Noise Level
What is the lens motor noise level?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
0 dB 0Votes
Measures noise generated during lens adjustments.
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Lens Protection Cover
Does this projector include a lens protection cover?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates whether the lens includes a physical protection cover.
In the battle of Lens Protection Cover, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Both projectors offer multiple color temperature options; ViewSonic PX748-4K includes Warm, Neutral, and Cool, while Optoma UHD38 adds a Custom option, allowing greater color adjustment flexibility.
Defines the visual warmth or coolness profile of the projected image.
In the battle of Color Temperature, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 7 score measurement.
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What is the light uniformity rating of this projector?
47 ViewSonic PX748-4K 0Votes Medium
72 Optoma UHD38 1Votes High
vs Light Uniformity Rating
ViewSonic PX748-4K has a Medium Light Uniformity Rating whereas Optoma UHD38 has a High rating, suggesting more consistent brightness across the screen in the Optoma.
Indicates how evenly brightness is distributed across the screen.
In the battle of Light Uniformity Rating, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 25 score measurement.
Based on community votes for Light Uniformity Rating, ViewSonic PX748-4K ◉ earned 0 votes, less than Optoma UHD38 ◉, which got 1 votes.
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
240 Watt 0Votes
vs Light Source Power Output
Light Source Power Output is not specified for ViewSonic PX748-4K, but is 240 Watts for Optoma UHD38, showing notable power in the Optoma's light source.
Indicates the wattage of the light source, affecting brightness potential.
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Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
30 second 0Votes
vs Warm-Up Time
Warm-Up Time is not available for ViewSonic PX748-4K but is 30 seconds for Optoma UHD38, indicating the Optoma takes some time to reach optimal brightness.
Time required for the projector to reach full brightness.
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Light Source Type
What is the light source type?
37 ViewSonic PX748-4K 0Votes Lamp
37 Optoma UHD38 0Votes Lamp
ViewSonic PX748-4K
The light source type is a lamp, which typically offers high brightness but may require periodic replacement compared to LED or laser sources.
Optoma UHD38
The projector uses a lamp as its light source, typical for this class of projectors with known brightness and color characteristics.
Defines the illumination technology powering the projector.
In the battle of Light Source Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Light Source Lifetime Eco Mode
What is the light source lifetime in eco mode?
4,000 hour 0Votes
15,000 hour 0Votes
ViewSonic PX748-4K
The light source lifetime in eco mode is 4,000 hours, extending the usage duration at reduced brightness settings.
Optoma UHD38
The light source lifetime in eco mode is 15,000 hours, which extends the usage period before replacement.
Estimated lifespan of the light source in eco mode.
In the battle of Light Source Lifetime Eco Mode, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 11,000.0 hour measurement.
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Light Source Replaceability
Can the light source be replaced?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
ViewSonic PX748-4K
Light source replaceability is supported, allowing users to easily change the lamp when it reaches the end of its lifespan.
Optoma UHD38
The light source is replaceable, allowing for extended usage through lamp replacement.
Indicates whether users can replace the light source.
In the battle of Light Source Replaceability, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Light Source Lifetime Normal Mode
What is the light source lifetime in normal mode?
20,000 hour 0Votes
4,000 hour 0Votes
ViewSonic PX748-4K
The light source lifetime in normal mode is 20,000 hours, indicating the expected operational duration before the lamp needs replacement.
Estimated lifespan in standard usage mode.
In the battle of Light Source Lifetime Normal Mode, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 16,000.0 hour measurement.
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Light Flicker Control
Does this projector include light flicker control?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
ViewSonic PX748-4K
Light flicker control is enabled, reducing screen flicker and improving viewing comfort especially during extended use.
Indicates whether flicker reduction technology is implemented.
In the battle of Light Flicker Control, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Light Efficiency
What is the light efficiency?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Measures how effectively the light source converts power into brightness.
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Cool-Down Time
What is the cool-down time?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
60 second 0Votes
Time required before the projector safely powers off.
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What color temperature presets does this projector offer?
47 ViewSonic PX748-4K 0Votes Warm, Neutral, Cool
47 Optoma UHD38 0Votes Warm, Neutral, Cool
vs Color Temperature Presets
Both projectors have color temperature presets of Warm, Neutral, and Cool, providing standard options for image warmth adjustment.
Preset visual warmth settings for different content.
In the battle of Color Temperature Presets, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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The Color Wheel Speed is 6x for ViewSonic PX748-4K and faster at 8x+ for Optoma UHD38, which may impact color performance and rainbow effect visibility.
Defines the rotational speed of the DLP color wheel, affecting color accuracy and rainbow artifact reduction.
In the battle of Color Wheel Speed (for DLP), ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 20 score measurement.
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Skin Tone Correction is not available on both ViewSonic PX748-4K and Optoma UHD38, so skin tones may not be specifically enhanced.
Enhances natural skin tones for realistic visuals.
In the battle of Skin Tone Correction, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Both ViewSonic PX748-4K and Optoma UHD38 do not support MEMC mode, so motion estimation and frame interpolation are not available.
Motion interpolation for smooth fast-action content.
In the battle of MEMC Mode, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Image Processor Type
What is the image processor type?
27 ViewSonic PX748-4K 0Votes Standard
57 Optoma UHD38 0Votes Advanced
Optoma UHD38
The image processor type is advanced, enhancing image quality and processing speed.
Specifies the processing engine that handles color, scaling, and image optimization.
In the battle of Image Processor Type, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 30 score measurement.
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Image Processing Bit Depth
What is the image processing bit depth?
10 bit 0Votes
10 bit 0Votes
Optoma UHD38
Image processing bit depth of 10 bits helps produce smooth gradients and reduce banding in images.
Indicates color precision and gradient smoothness.
In the battle of Image Processing Bit Depth, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 10.00 bit measurement.
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Color Calibration Profiles
What color calibration profiles are available?
59 ViewSonic PX748-4K 0Votes Rec709, Cinema, Game
60 Optoma UHD38 0Votes sRGB, Rec709, Cinema, Game
ViewSonic PX748-4K
The projector includes multiple color calibration profiles including Rec709, Cinema, and Game, enabling color adjustments tailored for various viewing scenarios.
Predefined settings for accurate color reproduction.
In the battle of Color Calibration Profiles, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 1 score measurement.
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Black Level Enhancement
Does this projector include black level enhancement?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
ViewSonic PX748-4K
Black level enhancement is enabled, improving the projector's ability to display deeper blacks and enhance overall contrast for better picture quality.
Deepens dark scenes for improved shadow detail.
In the battle of Black Level Enhancement, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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White Balance Control
Does this projector include white balance control?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
ViewSonic PX748-4K
White balance control is available, enhancing color accuracy by adjusting the balance of white tones in the projected image.
Allows tuning of color balance for accurate whites.
In the battle of White Balance Control, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Noise Reduction Type
What type of noise reduction does this projector use?
47 ViewSonic PX748-4K 0Votes Standard
47 Optoma UHD38 0Votes Standard
Optoma UHD38
Noise reduction is standard, helping reduce image artifacts in video playback.
Indicates the technique used to reduce visual noise and artifacts for a cleaner image.
In the battle of Noise Reduction Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Auto Color Correction
Does this projector have auto color correction?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Automatically adjusts colors for the best image quality.
In the battle of Auto Color Correction, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Controls mid-tone brightness for accurate contrast.
In the battle of Gamma Adjustment Levels, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 45 score measurement.
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Smart Features & Software 12
Operating System Type
What is the operating system type?
7 ViewSonic PX748-4K 0Votes No OS
7 Optoma UHD38 0Votes No OS
ViewSonic PX748-4K
This projector does not run a dedicated operating system, which means it lacks built-in smart platform functionality like streaming apps or app downloads.
Specifies the software platform the projector runs on.
In the battle of Operating System Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Software Update Method
What is the software update method?
97 ViewSonic PX748-4K 0Votes OTA
67 Optoma UHD38 0Votes USB
Optoma UHD38
Software updates are done via USB, requiring a flash drive for firmware upgrades.
Describes how firmware updates are applied.
In the battle of Software Update Method, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 30 score measurement.
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App Store Support
Does this projector support an app store?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates support for downloading apps directly to the projector.
In the battle of App Store Support, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Built-In Streaming Apps
What built-in streaming apps are available?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Lists available preinstalled streaming services.
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Voice Control
Does this projector support voice control?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
vs Voice Control
Voice Control is not supported on both ViewSonic PX748-4K and Optoma UHD38, so voice assistant features are absent.
Enables hands-free control using supported voice assistants.
In the battle of Voice Control, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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AI Auto Image Optimization
Does this projector include AI auto image optimization?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Automatically enhances image settings using AI.
In the battle of AI Auto Image Optimization, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Wireless Casting
Does this projector support wireless casting?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates compatibility with casting protocols like Chromecast or AirPlay.
In the battle of Wireless Casting, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Screen Mirroring Standard
What screen mirroring standard does this projector support?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Specifies which standard is used for mirroring devices.
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Smart Calibration
Does this projector support smart calibration?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates whether calibration can be optimized automatically or via app.
In the battle of Smart Calibration, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Bluetooth Version
What is the Bluetooth version?
0 ViewSonic PX748-4K 0Votes No
0 Optoma UHD38 0Votes No OS
vs Bluetooth Version
ViewSonic PX748-4K has no Bluetooth version support, while Optoma UHD38 lists No OS for Bluetooth Version, indicating no native Bluetooth on either projector.
Indicates the Bluetooth protocol version for audio and accessories.
In the battle of Bluetooth Version, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Wi-Fi Band Support
What Wi-Fi bands does this projector support?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Indicates the supported wireless frequency bands.
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On-Device Storage Capacity
What is the on-device storage capacity?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
0 GB 0Votes
Amount of internal memory available for apps and media.
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What type of audio out port does this projector have?
17 ViewSonic PX748-4K 0Votes 3.5mm
42 Optoma UHD38 0Votes 3.5mm, Optical
vs Audio Out Port Type
ViewSonic PX748-4K has a 3.5mm Audio Out Port Type, while Optoma UHD38 offers both 3.5mm and Optical audio out, giving the Optoma more flexible audio output choices.
Indicates available audio output interfaces.
In the battle of Audio Out Port Type, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 25 score measurement.
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Neither ViewSonic PX748-4K nor Optoma UHD38 has an SD card slot, limiting direct playback options from memory cards.
Indicates ability to read media directly from SD cards.
In the battle of SD Card Slot, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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HDMI Ports Count
How many HDMI ports does this projector have?
47 ViewSonic PX748-4K 0Votes 2
47 Optoma UHD38 0Votes 2
ViewSonic PX748-4K
The projector has two HDMI ports, allowing connection of multiple HDMI-compatible devices.
Optoma UHD38
There are 2 HDMI ports, permitting multiple device connections simultaneously.
Number of HDMI inputs available for digital video and audio.
In the battle of HDMI Ports Count, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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USB Type Support
What USB types are supported?
57 ViewSonic PX748-4K 0Votes USB-A, USB-C
37 Optoma UHD38 0Votes USB-A
ViewSonic PX748-4K
USB connectivity includes both USB-A and USB-C ports, supporting a range of peripherals and external storage devices.
Optoma UHD38
The projector supports USB-A ports, commonly used for media playback and firmware updates.
Defines the supported USB standards and connector types.
In the battle of USB Type Support, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 20 score measurement.
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Wired Input Lag
What is the wired input lag?
4.2 ms 0Votes
4.2 ms 0Votes
ViewSonic PX748-4K
The projector has a wired input lag of 4.2 milliseconds, which is quite low and beneficial for gaming or fast-motion content.
Optoma UHD38
Wired input lag is very low at 4.2 milliseconds, important for gaming responsiveness.
Measures latency over wired connections, important for gaming.
In the battle of Wired Input Lag, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 4.20 ms measurement.
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HDMI Version
What HDMI version does this projector support?
64 ViewSonic PX748-4K 0Votes 2.0
64 Optoma UHD38 0Votes 2.0
Optoma UHD38
It supports HDMI version 2.0, suitable for 4K video transmission at standard frame rates.
Specifies the supported HDMI standard.
In the battle of HDMI Version, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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USB Ports Count
How many USB ports does this projector have?
64 ViewSonic PX748-4K 0Votes 2
30 Optoma UHD38 0Votes 1
ViewSonic PX748-4K
There are 2 USB ports available, providing options for external device connection and media playback.
Indicates how many USB ports are available.
In the battle of USB Ports Count, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 34 score measurement.
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Ethernet Port
Does this projector support Ethernet?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
ViewSonic PX748-4K
An Ethernet port is present, allowing for wired network connectivity which can improve streaming stability and enable remote management.
Indicates whether wired internet connectivity is available.
In the battle of Ethernet Port, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Optical Audio Output
Does this projector include an optical audio output?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
ViewSonic PX748-4K
An optical audio output is provided, allowing high-quality digital audio transmission to compatible sound systems.
Indicates availability of optical audio interface for high-quality sound systems.
In the battle of Optical Audio Output, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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12V Trigger Port
Does this projector have a 12V trigger port?
No 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
Used to control motorized screens and automation systems.
In the battle of 12V Trigger Port, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ .
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Wireless Input Lag
What is the wireless input lag?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Measures latency when receiving content wirelessly.
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Audio System 9
Speaker Output Power
What is the speaker output power?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
10 Watt 0Votes
vs Speaker Output Power
Speaker Output Power is unavailable on ViewSonic PX748-4K but is 10 Watts on Optoma UHD38, indicating the Optoma may provide louder built-in audio.
Indicates total audio power from built-in speakers.
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Speaker Configuration
What is the speaker configuration?
67 ViewSonic PX748-4K 0Votes Stereo
27 Optoma UHD38 0Votes Mono
ViewSonic PX748-4K
The built-in speaker configuration is stereo, providing a balanced two-channel audio experience.
Describes the speaker layout inside the projector.
In the battle of Speaker Configuration, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 40 score measurement.
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Audio Processing Type
What type of audio processing does this projector use?
17 ViewSonic PX748-4K 0Votes Standard
17 Optoma UHD38 0Votes Standard
vs Audio Processing Type
Both ViewSonic PX748-4K and Optoma UHD38 use Standard audio processing types, indicating no enhanced or proprietary audio features.
Defines the audio enhancement engine used to improve clarity, bass response, and spatial sound.
In the battle of Audio Processing Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Dolby Audio
Does this projector support Dolby audio?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
vs Dolby Audio
Dolby Audio is supported on both ViewSonic PX748-4K and Optoma UHD38, ensuring quality surround sound capabilities.
Determines whether the projector supports Dolby audio formats.
In the battle of Dolby Audio, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Sound Modes
What sound modes are available?
87 ViewSonic PX748-4K 0Votes Movie, Music, Game
87 Optoma UHD38 0Votes Movie, Music, Game
ViewSonic PX748-4K
It supports sound modes for Movie, Music, and Game, optimizing audio settings to enhance the experience respective to the content type.
Preset audio profiles optimized for different content.
In the battle of Sound Modes, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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DTS Audio
Does this projector support DTS audio?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates whether DTS audio decoding is available.
In the battle of DTS Audio, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Bluetooth Audio Output
Does this projector support Bluetooth audio output?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
vs Bluetooth Audio Output
Bluetooth Audio Output is not available on both ViewSonic PX748-4K and Optoma UHD38, so wireless audio streaming is not an option.
Allows wireless output to speakers or headphones.
In the battle of Bluetooth Audio Output, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Fan Noise Level
What is the fan noise level?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
0 dB 0Votes
Measures ambient noise from the projector fan.
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Microphone Input
Does this projector support microphone input?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
vs Microphone Input
Neither ViewSonic PX748-4K nor Optoma UHD38 include a Microphone Input, so external microphone use is not supported.
Indicates whether microphones can be connected for presentations or karaoke.
In the battle of Microphone Input, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Controls & User Interface 11
Indicator Light Controls
Does this projector support indicator light controls?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
ViewSonic PX748-4K
Indicator light controls are included, allowing users to enable or disable status lights based on preference or ambient lighting conditions.
Optoma UHD38
Indicator light controls are available to inform about the operating status of the projector.
Allows dimming or disabling LED indicator lights.
In the battle of Indicator Light Controls, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Remote Control Type
What type of remote control is included?
17 ViewSonic PX748-4K 0Votes Standard
27 Optoma UHD38 0Votes Standard, Backlit
vs Remote Control Type
The Remote Control Type for ViewSonic PX748-4K is Standard, while Optoma UHD38 offers a Standard backlit remote control, improving usability in dark environments.
Defines the style and capability of the included remote.
In the battle of Remote Control Type, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 10 score measurement.
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On-Screen Menu Features
What on-screen menu features does this projector offer?
77 ViewSonic PX748-4K 0Votes Quick Settings, Advanced Settings, Icon-Based Menu
77 Optoma UHD38 0Votes Quick Settings, Advanced Settings, Icon-Based Menu
vs On-Screen Menu Features
On-Screen Menu Features on both ViewSonic PX748-4K and Optoma UHD38 include Quick Settings, Advanced Settings, and Icon-Based Menu, providing similar user interface functionality.
Describes navigational and functional features available inside the on-screen display (OSD) menu.
In the battle of On-Screen Menu Features, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Menu Navigation Style
What is the menu navigation style?
57 ViewSonic PX748-4K 0Votes Icon-Based
57 Optoma UHD38 0Votes Icon-Based
vs Menu Navigation Style
Menu Navigation Style is Icon-Based on both ViewSonic PX748-4K and Optoma UHD38, helping users navigate settings visually.
Defines how users navigate the on-screen interface.
In the battle of Menu Navigation Style, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Custom Preset Modes
Does this projector allow custom preset modes?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
Optoma UHD38
Custom preset modes are available, allowing users to save and quickly select preferred image settings.
Indicates whether image or sound presets can be saved by the user.
In the battle of Custom Preset Modes, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Auto Source Detection
Does this projector support auto source detection?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
vs Auto Source Detection
Both projectors support Auto Source Detection, enabling automatic input recognition for ease of use.
Detects active inputs automatically.
In the battle of Auto Source Detection, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Input Switching Speed
What is the input switching speed?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
2 second 0Votes
vs Input Switching Speed
Input Switching Speed data is unavailable for ViewSonic PX748-4K but is approximately 2 seconds on Optoma UHD38, which allows relatively quick input changes on the Optoma.
Time required to change from one input to another.
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Control Panel Type
What is the control panel type?
17 ViewSonic PX748-4K 0Votes Buttons
17 Optoma UHD38 0Votes Buttons
Indicates the type of on-device control interface.
In the battle of Control Panel Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Backlit Remote
Does this projector include a backlit remote?
No 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
Indicates whether the remote supports backlighting for dark rooms.
In the battle of Backlit Remote, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ .
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Programmable Buttons
Does this projector include programmable buttons?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Determines whether the projector or remote includes assignable hotkeys.
In the battle of Programmable Buttons, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Parental Control Features
Does this projector include parental control features?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates whether parental restrictions or PIN locks are available.
In the battle of Parental Control Features, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Power & Electrical 12
Power Consumption Normal Mode
What is the power consumption in normal mode?
310 Watt 0Votes
300 Watt 0Votes
vs Power Consumption Normal Mode
ViewSonic PX748-4K consumes 310 Watts in Normal Mode, slightly more than Optoma UHD38's 300 Watts, which may impact power usage costs slightly.
Average power usage while running at full performance.
In the battle of Power Consumption Normal Mode, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering higher 10.0 Watt measurement.
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Standby Power
What is the standby power consumption?
0.5 Watt 0Votes
0.5 Watt 0Votes
vs Standby Power
Standby Power consumption is identical at 0.5 Watts for both ViewSonic PX748-4K and Optoma UHD38, reflecting similar energy-saving standby modes.
Power consumed when the projector is not active but still plugged in.
In the battle of Standby Power, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 0.50 Watt measurement.
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Input Voltage Range
What is the input voltage range?
37 ViewSonic PX748-4K 0Votes 100-240V
57 Optoma UHD38 0Votes 100–240V AC
vs Input Voltage Range
Input Voltage Range for ViewSonic PX748-4K is 100-240V, while Optoma UHD38 specifies 100–240V AC, effectively the same ensuring wide compatibility.
Supported voltage range for safe operation.
In the battle of Input Voltage Range, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 20 score measurement.
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Power Supply Type
What is the power supply type?
67 ViewSonic PX748-4K 0Votes Internal
67 Optoma UHD38 0Votes Internal
ViewSonic PX748-4K
The power supply is integrated internally, reducing cable clutter and simplifying setup.
Indicates whether the power supply is built-in or external.
In the battle of Power Supply Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Power Cord Length
What is the power cord length?
6 ft 0Votes
6 ft 0Votes
Optoma UHD38
The power cord length is 6 feet (1.83 meters), providing moderate placement flexibility.
Length of included power cable.
In the battle of Power Cord Length, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 6.00 ft measurement.
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Operating Power Frequency
What is the operating power frequency?
50 Hz 0Votes
60 Hz 0Votes
ViewSonic PX748-4K
The operating power frequency is 50 Hz, aligning with common power grid frequencies in many countries.
Indicates supported AC frequency.
In the battle of Operating Power Frequency, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 10.0 Hz measurement.
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Power Consumption Eco Mode
What is the power consumption in eco mode?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
240 Watt 0Votes
Reduced power usage when operating in eco mode.
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Surge Protection
Does this projector include surge protection?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
vs Surge Protection
Neither ViewSonic PX748-4K nor Optoma UHD38 include surge protection, so external surge protectors may be advisable.
Indicates whether built-in surge protection is included.
In the battle of Surge Protection, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Power Efficiency Rating
What is the power efficiency rating?
0 ViewSonic PX748-4K 0Votes None
0 Optoma UHD38 0Votes None
vs Power Efficiency Rating
Both projectors have no power efficiency rating, so energy efficiency performance is ungraded.
Describes the energy efficiency certification.
In the battle of Power Efficiency Rating, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Heat Output
What is the heat output?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
0 BTU 0Votes
Measures emitted heat during operation.
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Thermal Control Technology
What thermal control technology does this projector use?
37 ViewSonic PX748-4K 0Votes Standard Cooling
67 Optoma UHD38 0Votes Advanced Cooling
Defines the system used to manage heat and maintain safe operating temperatures.
In the battle of Thermal Control Technology, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 30 score measurement.
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Power-On Time
What is the power-on time?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
30 second 0Votes
Time required for the projector to turn on and display an image.
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Physical & Dimensions 17
Depth
What is the depth of the projector?
4.3 inch 0Votes
4.64 inch 0Votes
vs Depth
Depth of ViewSonic PX748-4K is 4.3 inches compared to 4.64 inches for Optoma UHD38, making the ViewSonic slightly more compact in depth.
Physical depth measurement.
In the battle of Depth, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering lower 0.3 inch measurement.
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Height
What is the height of the projector?
8.7 inch 0Votes
12.4 inch 0Votes
ViewSonic PX748-4K
The height of the projector is 8.7 inches (22.1 cm), contributing to its compact size.
Optoma UHD38
The height of the projector is 12.4 inches (31.5 cm), contributing to its overall footprint.
Vertical size of the projector body.
In the battle of Height, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering lower 3.7 inch measurement.
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Weight
What is the weight of the projector?
6.2 lbs 0Votes
9.25 lbs 0Votes
ViewSonic PX748-4K
The projector weighs 6.2 lbs (2.81 kg), a compact and manageable weight for easy installation and portability.
Optoma UHD38
The projector's weight is 9.25 pounds (4.20 kg), making it portable for setups or moves.
Total weight of the projector.
In the battle of Weight, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering lower 3.1 lbs measurement.
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Width
What is the width of the projector?
12.2 inch 0Votes
10.6 inch 0Votes
vs Width
Width of ViewSonic PX748-4K is 12.2 inches and is larger than Optoma UHD38's 10.6 inches, indicating Optoma is more compact in width.
Physical width of the projector body.
In the battle of Width, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering higher 1.6 inch measurement.
Don’t keep it to yourself — be the first to react and review the Width on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Package Width
What is the package width?
16.3 inch 0Votes
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
ViewSonic PX748-4K
The package width is 16.3 inches (41.4 cm), which gives an idea of the shipping box size.
Width of the boxed projector.
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Package Depth
What is the package depth?
6.6 inch 0Votes
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
vs Package Depth
Package Depth is 6.6 inches for ViewSonic PX748-4K but is unavailable for Optoma UHD38, so shipping box size comparison is not possible.
Depth of the boxed projector.
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Mounting Type
What is the mounting type?
22 ViewSonic PX748-4K 0Votes Tabletop, Ceiling
17 Optoma UHD38 0Votes Tabletop
vs Mounting Type
The ViewSonic PX748-4K supports Tabletop and Ceiling mounting, while Optoma UHD38 supports only Tabletop mounting, offering more installation flexibility for ViewSonic.
Describes available mounting configurations.
In the battle of Mounting Type, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 5 score measurement.
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Ceiling Mount Compatibility
Is the projector compatible with ceiling mounting?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
vs Ceiling Mount Compatibility
Ceiling Mount Compatibility is present for both ViewSonic PX748-4K and Optoma UHD38, allowing ceiling installation options.
Indicates whether the projector supports ceiling mounting.
In the battle of Ceiling Mount Compatibility, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
Don’t keep it to yourself — be the first to react and review the Ceiling Mount Compatibility on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Folded Width
What is the folded width?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Width when the projector or components are folded (if applicable).
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Folded Depth
What is the folded depth?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Folded depth measurement.
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Folded Height
What is the folded height?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Folded height measurement.
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Package Height
What is the package height?
11.7 inch 0Votes
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Height of the boxed projector.
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Tripod Mount Compatibility
Is the projector tripod compatible?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates whether the projector can attach to tripods.
In the battle of Tripod Mount Compatibility, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
Don’t keep it to yourself — be the first to react and review the Tripod Mount Compatibility on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Carry Handle
Does the projector include a carry handle?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates whether the projector includes a handle for portability.
In the battle of Carry Handle, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
Don’t keep it to yourself — be the first to react and review the Carry Handle on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Body Ventilation Design
What is the body ventilation design of this projector?
47 ViewSonic PX748-4K 0Votes Side Vent
22 Optoma UHD38 0Votes Rear Vent
Describes the airflow layout used to cool the internal components.
In the battle of Body Ventilation Design, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 25 score measurement.
Don’t keep it to yourself — be the first to react and review the Body Ventilation Design on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Cooling Fan Size
What is the cooling fan size?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
Who knows? 0Votes Optoma UHD38 (Help us out by suggesting one!)
Fan diameter contributing to cooling performance.
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Chassis Reinforcement Type
What type of chassis reinforcement is used?
47 ViewSonic PX748-4K 0Votes Standard Reinforcement
47 Optoma UHD38 0Votes Standard Reinforcement
Indicates extra structural strengthening applied to the projector chassis.
In the battle of Chassis Reinforcement Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
Don’t keep it to yourself — be the first to react and review the Chassis Reinforcement Type on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Environmental Conditions 10
Operating Temperature Maximum
What is the maximum operating temperature?
104 °F 0Votes
104 °F 0Votes
ViewSonic PX748-4K
The operating temperature maximum is 104°F (40°C), showing the upper limit for safe operation of the projector.
Optoma UHD38
The maximum operating temperature is 104°F (40.0°C), indicating the maximum ambient temperature for safe operation.
Maximum safe temperature for normal operation.
In the battle of Operating Temperature Maximum, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 104.00 °F measurement.
Don’t keep it to yourself — be the first to react and review the Operating Temperature Maximum on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Operating Temperature Minimum
What is the minimum operating temperature?
32 °F 1Votes
41 °F 0Votes
vs Operating Temperature Minimum
Operating Temperature Minimum for ViewSonic PX748-4K is 32°F, whereas Optoma UHD38 requires a warmer minimum of 41°F, meaning ViewSonic is better suited for cooler environments.
Minimum safe temperature at which the projector can operate.
In the battle of Operating Temperature Minimum, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering lower 9.0 °F measurement.
Based on community votes for Operating Temperature Minimum, ViewSonic PX748-4K ◉ earned 1 votes, more than Optoma UHD38 ◉, which got 0 votes.
I prefer the ViewSonic PX748-4K because it can operate starting at a cooler 32 degrees Fahrenheit compared to UHD38's 41 degrees.
See more
Storage Temperature Minimum
What is the minimum storage temperature?
14 °F 0Votes
-4 °F 0Votes
ViewSonic PX748-4K
The storage temperature minimum is 14°F (-10°C), specifying how cold the device can be stored without risk of damage.
Minimum safe temperature for storing the projector.
In the battle of Storage Temperature Minimum, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering higher 18.0 °F measurement.
Don’t keep it to yourself — be the first to react and review the Storage Temperature Minimum on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Storage Temperature Maximum
What is the maximum storage temperature?
140 °F 0Votes
140 °F 0Votes
Optoma UHD38
The maximum storage temperature of 140°F (60.0°C) indicates the device should not be stored in environments exceeding this heat level to avoid damage or degradation.
Maximum temperature the projector can handle when stored.
In the battle of Storage Temperature Maximum, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ , delivering equal 140.00 °F measurement.
Don’t keep it to yourself — be the first to react and review the Storage Temperature Maximum on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Dust Resistance Rating
What is the dust resistance rating?
47 ViewSonic PX748-4K 0Votes Basic
47 Optoma UHD38 0Votes Basic
vs Dust Resistance Rating
Both ViewSonic PX748-4K and Optoma UHD38 have a Basic Dust Resistance Rating, suggesting minimal protection against dust ingress.
Indicates how well the projector resists dust intrusion.
In the battle of Dust Resistance Rating, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Outdoor Use
Does this projector support outdoor use?
Yes 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
ViewSonic PX748-4K
Outdoor use is supported, meaning the projector can operate effectively in open environment conditions with appropriate setup.
Specifies whether the projector is designed for outdoor environments.
In the battle of Outdoor Use, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 40 score measurement.
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Operating Humidity Range
What is the operating humidity range?
77 ViewSonic PX748-4K 0Votes 0-90% RH
77 Optoma UHD38 0Votes 10–85% non-condensing
vs Operating Humidity Range
Operating Humidity Range for ViewSonic PX748-4K is 0-90% RH, wider than the Optoma UHD38's 10–85% non-condensing, indicating better moisture tolerance during use for ViewSonic.
Acceptable humidity levels for proper operation.
In the battle of Operating Humidity Range, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Storage Humidity Range
What is the storage humidity range?
57 ViewSonic PX748-4K 0Votes 10-90% RH
67 Optoma UHD38 0Votes 10–85% non-condensing
vs Storage Humidity Range
Storage Humidity Range for ViewSonic PX748-4K is 10-90% RH, broader than Optoma UHD38's 10–85% non-condensing, suggesting ViewSonic tolerates wider humidity during storage.
Humidity levels tolerated during storage.
In the battle of Storage Humidity Range, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 10 score measurement.
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Light Spill Control
Does this projector have light spill control?
No 0Votes ViewSonic PX748-4K
No 0Votes Optoma UHD38
Indicates measures used to contain unwanted light scatter.
In the battle of Light Spill Control, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Eco Mode Power Reduction Percentage
What is the eco mode power reduction percentage?
Who knows? 0Votes ViewSonic PX748-4K (Help us out by suggesting one!)
20 % 0Votes
vs Eco Mode Power Reduction Percentage
Eco Mode Power Reduction Percentage is unavailable for ViewSonic PX748-4K but is 20% for Optoma UHD38, allowing the Optoma to reduce power consumption in eco mode.
Amount of power saved when using eco mode.
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Accessories & Warranty 8
Warranty Duration
What is the warranty duration?
67 ViewSonic PX748-4K 0Votes 3 years
0 Optoma UHD38 0Votes 1 year
ViewSonic PX748-4K
The warranty duration for this projector is three years, providing extended coverage for repairs or replacements within this period.
Optoma UHD38
The standard warranty duration is 1 year, providing coverage against manufacturing defects.
The length of the included manufacturer warranty.
In the battle of Warranty Duration, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 67 score measurement.
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Included accessories are a remote control and power cable, covering basic setup needs.
Lists the accessories that come in the box.
In the battle of Included Accessories, ViewSonic PX748-4K ◉ is better than Optoma UHD38 ◉ , delivering higher 5 score measurement.
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Replacement Lamp Model
What replacement lamp model is supported?
37 ViewSonic PX748-4K 0Votes Standard Lamp
47 Optoma UHD38 0Votes High-Brightness Lamp
ViewSonic PX748-4K
The projector uses a standard lamp as its light source, balancing brightness and lamp life with typical replacement cycle expectations.
Defines the type or class of replacement lamp or light module compatible with the projector.
In the battle of Replacement Lamp Model, ViewSonic PX748-4K ◉ is worse than Optoma UHD38 ◉ , delivering lower 10 score measurement.
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Power Cable Type
What type of power cable is included?
97 ViewSonic PX748-4K 0Votes 3-Prong
97 Optoma UHD38 0Votes 3-Prong
vs Power Cable Type
Both ViewSonic PX748-4K and Optoma UHD38 use a 3-Prong Power Cable Type, maintaining standard power connectivity.
Describes the style of the included power cable.
In the battle of Power Cable Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Quick-Start Guide
Is a quick-start guide included?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
vs Quick-Start Guide
Quick-Start Guide is included with both ViewSonic PX748-4K and Optoma UHD38, providing user assistance for setup.
Indicates whether a printed or digital quick-start guide is provided.
In the battle of Quick-Start Guide, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Extended Warranty
Does this projector support extended warranty options?
Yes 0Votes ViewSonic PX748-4K
Yes 0Votes Optoma UHD38
vs Extended Warranty
Extended Warranty is offered for both ViewSonic PX748-4K and Optoma UHD38, enhancing buyer protection and support.
Indicates whether users can purchase extended warranty coverage.
In the battle of Extended Warranty, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
Don’t keep it to yourself — be the first to react and review the Extended Warranty on ViewSonic PX748-4K ◉ vs Optoma UHD38 ◉ and help others decide!
Remote Control Battery Type
What battery type does the remote control use?
47 ViewSonic PX748-4K 0Votes AAA
47 Optoma UHD38 0Votes AAA
vs Remote Control Battery Type
Remote Control Battery Type is AAA for both ViewSonic PX748-4K and Optoma UHD38, simplifying battery replacements.
Specifies the battery type required for the remote.
In the battle of Remote Control Battery Type, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Service Availability Region
What is the service availability region?
97 ViewSonic PX748-4K 0Votes Global
97 Optoma UHD38 0Votes Worldwide
vs Service Availability Region
Service Availability Region for ViewSonic PX748-4K is Global and for Optoma UHD38 is Worldwide, both offering extensive service coverage.
Specifies the regions where service and repairs are supported.
In the battle of Service Availability Region, ViewSonic PX748-4K ◉ is same as Optoma UHD38 ◉ .
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Surveys
Because hot takes deserve votes.
Performance
How would you rate the performance of this projector in terms of brightness and picture quality?
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