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 is the better projector overall, rated 3.9 to 3.3. The Optoma GT2400HDR leads on brightness. The VISSPL H81 wins on streaming and setup. The VISSPL H81 costs $1,149.01 less ($149.99 vs $1,299).
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.
Which should you buy?
- Choose the Optoma GT2400HDR for brightness (4,200 ISO 21118 lumens vs listed 4,000 lumens rating not credible).
- Choose the VISSPL H81 for streaming (Maker OS with licensed Netflix vs no built-in apps; needs a streaming stick) and setup (Autofocus, auto keystone vs Manual focus and keystone).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every native 1080p projector; a clear win is highlighted. How we rank explains each one.
| Factor weight | Optoma GT2400HDR | VISSPL H81 |
|---|---|---|
| Overall rating | 3.9/5 | 3.3/5 |
| Brightness 25% | 100 4,200 ISO 21118 lumens | 0 listed 4,000 lumens rating not credible |
| Value 15% | 81 $0.31 per lumen | 50 no rated brightness (neutral score used) |
| Resolution 10% | 100 1920 x 1080 native | 100 1920 x 1080 native |
| Streaming 15% | 0 no built-in apps; needs a streaming stick | 100 Maker OS with licensed Netflix |
| Setup 10% | 0 Manual focus and keystone | 60 Autofocus, auto keystone |
| Light life 10% | 100 30,000 hour laser | 50 light source life not published (neutral score used) |
| Gaming 10% | 99 8.4 ms input lag | 50 input lag not published (neutral score used) |
| Warranty 5% | 50 warranty not published (neutral score used) | 50 2-year warranty |
Specifications
| Optoma GT2400HDR | VISSPL H81 | |
|---|---|---|
| Picture | ||
| Brightness | 4,200 ISO 21118 | 4,000 ANSI (listed, not credible) |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 1080p | 1080p |
| Display | DLP | - |
| Light source | laser | - |
| Light source life | 30,000 hours | - |
| HDR | HDR10, HLG | HDR10+ |
| Placement | ||
| Throw | Short throw (0.5:1) | Standard throw |
| Largest image | 300 in | 300 in |
| Autofocus | No | Yes |
| Auto keystone | No | - |
| Obstacle avoidance | No | - |
| Auto screen fit | - | Yes |
| Optical zoom | None | - |
| Streaming and gaming | ||
| Built-in apps | None | Maker OS, licensed Netflix |
| Input lag | 8.4 ms | - |
| Top refresh rate | 120 Hz | - |
| HDMI ports | 2 | - |
| eARC | No | - |
| Speakers | 15 W | - |
| Build | ||
| Battery | None | None |
| Fan noise | 29 dB | - |
| Power | 170 W | - |
| Dimensions | 10.79 x 8.5 x 4.49 in (W x D x H) | 6.3 x 6.3 x 3.1 in |
| Weight | 6.6 lb | 2.6 lb |
| Warranty | - | 2 years |
| Released | 2026-03 | - |