Optoma UHD38x
#25 in 4KFull review
A cheap, very bright 4K lamp projector for gamers and sports fans who can add a streaming stick and place it carefully.
Amazon $999$999
The Optoma UHD38x rates 3.9 among 4K projectors; the VISSPL H81 rates 3.3 among native 1080p ones. The VISSPL H81 costs $849.01 less ($149.99 vs $999).
VISSPL H81
#62 in Native 1080pFull review
A very cheap native 1080p mini projector with licensed Netflix for dark bedrooms. Disregard its 4000 ANSI claim.
Amazon $149.99$149.99
Prices were last checked October 29, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different type classes (4K and native 1080p), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Optoma UHD38x | VISSPL H81 |
|---|---|---|
| Overall rating | 3.9/5 | 3.3/5 |
| Brightness 25% | 100 4,000 ANSI lumens | 0 listed 4,000 lumens rating not credible |
| Value 15% | 100 $0.25 per lumen | 50 no rated brightness (neutral score used) |
| Resolution 10% | 100 4K (pixel shift) | 100 1920 x 1080 native |
| Streaming 15% | 0 no built-in apps; needs a streaming stick | 100 Maker OS with licensed Netflix |
| Setup 10% | 20 1.1x zoom | 60 Autofocus, auto keystone |
| Light life 10% | 69 15,000 hour lamp | 50 light source life not published (neutral score used) |
| Gaming 10% | 100 4.2 ms input lag | 50 input lag not published (neutral score used) |
| Warranty 5% | 0 1-year warranty | 50 2-year warranty |
Specifications
| Optoma UHD38x | VISSPL H81 | |
|---|---|---|
| Picture | ||
| Brightness | 4,000 ANSI | 4,000 ANSI (listed, not credible) |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 1080p |
| Display | DLP | - |
| Light source | lamp | - |
| Light source life | 15,000 hours | - |
| HDR | HDR10, HLG | HDR10+ |
| Dynamic contrast | 1,000,000:1 | - |
| Placement | ||
| Throw | Standard throw (1.5:1) | Standard throw |
| Largest image | 300 in | 300 in |
| Autofocus | No | Yes |
| Auto keystone | No | - |
| Obstacle avoidance | No | - |
| Auto screen fit | No | Yes |
| Optical zoom | 1.1x | - |
| Streaming and gaming | ||
| Built-in apps | None | Maker OS, licensed Netflix |
| Input lag | 4.2 ms | - |
| Top refresh rate | 240 Hz | - |
| HDMI ports | 2 | - |
| Speakers | 10 W | - |
| Build | ||
| Battery | None | None |
| Fan noise | 28 dB | - |
| Power | 305 W | - |
| Dimensions | 12.4 x 10.63 x 4.65 in (W x D x H) | 6.3 x 6.3 x 3.1 in |
| Weight | 8.8 lb | 2.6 lb |
| Warranty | 1 years | 2 years |
| Released | 2022-12 | - |