Optoma GT1080HDR
#19 in Native 1080pFull review
A short throw 1080p lamp projector for gaming in a small room. Newer laser models cost more but skip the lamp changes.
Amazon $799$799
The Optoma GT1080HDR rates 3.8 among native 1080p projectors; the Optoma UHD35STx rates 3.8 among 4K ones. The Optoma GT1080HDR costs $500 less ($799 vs $1,299).
Optoma UHD35STx
#26 in 4KFull review
A short throw 4K gaming projector for small rooms where the projector has to sit close to the screen.
Amazon $1,299$1,299
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 (native 1080p and 4K), 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 GT1080HDR | Optoma UHD35STx |
|---|---|---|
| Overall rating | 3.8/5 | 3.8/5 |
| Brightness 25% | 100 3,800 ISO 21118 lumens | 95 3,600 ANSI lumens |
| Value 15% | 93 $0.21 per lumen | 96 $0.36 per lumen |
| Resolution 10% | 100 1920 x 1080 native | 100 4K (pixel shift) |
| Streaming 15% | 0 no built-in apps; needs a streaming stick | 0 no built-in apps; needs a streaming stick |
| Setup 10% | 0 Manual focus and keystone | 0 Manual focus and keystone |
| Light life 10% | 69 15,000 hour lamp | 69 15,000 hour lamp |
| Gaming 10% | 99 8.4 ms input lag | 100 4 ms input lag |
| Warranty 5% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Optoma GT1080HDR | Optoma UHD35STx | |
|---|---|---|
| Picture | ||
| Brightness | 3,800 ISO 21118 | 3,600 ANSI |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 1080p | 4K (pixel shift from 1920x1080) |
| Display | DLP | DLP |
| Light source | lamp | lamp |
| Light source life | 15,000 hours | 15,000 hours |
| HDR | HDR | HDR10, HLG |
| Dynamic contrast | 50,000:1 | 1,000,000:1 |
| Placement | ||
| Throw | Short throw (0.5:1) | Short throw (0.5:1) |
| Largest image | 306.8 in | 300 in |
| Autofocus | No | No |
| Auto keystone | No | No |
| Obstacle avoidance | No | No |
| Auto screen fit | No | No |
| Optical zoom | None | None |
| Streaming and gaming | ||
| Built-in apps | None | None |
| Input lag | 8.4 ms | 4 ms |
| Top refresh rate | 120 Hz | 240 Hz |
| HDMI ports | 2 | 2 |
| eARC | No | - |
| Speakers | 10 W | 10 W |
| Build | ||
| Battery | None | None |
| Fan noise | 26 dB | 28 dB |
| Power | 285 W | 320 W |
| Dimensions | 12.44 x 9.61 x 4.25 in (W x D x H) | 12.4 x 10.63 x 4.65 in (W x D x H) |
| Weight | 6.6 lb | 7.7 lb |
| Warranty | 1 years | 1 years |
| Released | 2019-09 | 2022-09 |