Optoma GT2400HDR
#7 in Native 1080pFull review
The brightest of Optoma’s compact short throw laser models, for golf simulators and game rooms where the projector has to sit close to the screen.
Amazon $1,299$1,299
The Optoma GT2400HDR rates 3.9 among native 1080p projectors; the Optoma UHD38x rates 3.9 among 4K ones. The Optoma UHD38x costs $300 less ($999 vs $1,299).
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
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 GT2400HDR | Optoma UHD38x |
|---|---|---|
| Overall rating | 3.9/5 | 3.9/5 |
| Brightness 25% | 100 4,200 ISO 21118 lumens | 100 4,000 ANSI lumens |
| Value 15% | 81 $0.31 per lumen | 100 $0.25 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 | 20 1.1x zoom |
| Light life 10% | 100 30,000 hour laser | 69 15,000 hour lamp |
| Gaming 10% | 99 8.4 ms input lag | 100 4.2 ms input lag |
| Warranty 5% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| Optoma GT2400HDR | Optoma UHD38x | |
|---|---|---|
| Picture | ||
| Brightness | 4,200 ISO 21118 | 4,000 ANSI |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 1080p | 4K (pixel shift from 1920x1080) |
| Display | DLP | DLP |
| Light source | laser | lamp |
| Light source life | 30,000 hours | 15,000 hours |
| HDR | HDR10, HLG | HDR10, HLG |
| Dynamic contrast | - | 1,000,000:1 |
| Placement | ||
| Throw | Short throw (0.5:1) | Standard throw (1.5:1) |
| Largest image | 300 in | 300 in |
| Autofocus | No | No |
| Auto keystone | No | No |
| Obstacle avoidance | No | No |
| Auto screen fit | - | No |
| Optical zoom | None | 1.1x |
| Streaming and gaming | ||
| Built-in apps | None | None |
| Input lag | 8.4 ms | 4.2 ms |
| Top refresh rate | 120 Hz | 240 Hz |
| HDMI ports | 2 | 2 |
| eARC | No | - |
| Speakers | 15 W | 10 W |
| Build | ||
| Battery | None | None |
| Fan noise | 29 dB | 28 dB |
| Power | 170 W | 305 W |
| Dimensions | 10.79 x 8.5 x 4.49 in (W x D x H) | 12.4 x 10.63 x 4.65 in (W x D x H) |
| Weight | 6.6 lb | 8.8 lb |
| Warranty | - | 1 years |
| Released | 2026-03 | 2022-12 |