Optoma GT2400HDR: Specs, Throw Distance & Alternatives
A short-throw 1080p DLP laser projector with a game mode. Optoma rates it at 4,200 lumens (ISO 21118) and 8.4 ms input lag at 1080p/120, rising to 16.7 ms at 1080p/60 and with a 4K input. It is native 1080p (it accepts 4K input but does not display 4K) and has a fixed lens, no lens shift and no smart TV system.
Is the Optoma GT2400HDR right for you?
Good for
- Fast console and PC gaming: Optoma rates lag at 8.4 ms at 1080p/120 and 16.7 ms at 1080p/60
- Small rooms: a 0.496:1 short-throw lens, with a 100-inch image from about 3.6 ft
- HDR10 and HLG content
- Rooms with some light: 4,200 lumens rated
What to plan for
- Native 1080p: 4K sources are shown at 1080p
- No smart TV system listed: add a streaming stick (the USB-A port supplies 1.5 A of power)
- No lens shift and no optical zoom, so placement has to be planned
- Audio out is 3.5 mm only; no ARC or optical out is listed
- A single 15 W mono speaker
Based on manufacturer specifications and published reviews (sources below). We don't do hands-on testing.
Optoma GT2400HDR specs
| Resolution | 1080p (1920 × 1080 native; accepts 4K input) |
|---|---|
| Brightness | 4,200 lumens (Optoma rating, ISO 21118) |
| Display technology | DLP |
| Light source | Laser phosphor (DuraCore) |
| Light source life | Not confirmed (Normal-mode life not published by Optoma) |
| Contrast ratio | 2,000,000:1 dynamic (Optoma rating; 300,000:1 full on/off) |
| Throw ratio | 0.496:1 |
| Lens shift | None (fixed lens, fixed 116% offset) |
| Max refresh rate | 120 Hz |
| HDMI ports | 2 (HDMI 2.0) |
| Speakers | 15 W |
| Weight | 6.6 lb |
How far from the screen?
Lens-to-screen distance for a 16:9 image, calculated from its 0.496:1 throw ratio. The lens is fixed, so the distance sets the image size.
| Screen | Distance |
|---|---|
| 80″ | 2' 11" |
| 100″ | 3' 7" |
| 120″ | 4' 4" |
| 150″ | 5' 5" |
Optoma GT2400HDR input lag by mode
| Signal | Input lag |
|---|---|
| 1080p / 120 Hz | 8.4 ms |
| 1080p / 60 Hz | 16.7 ms |
| 4K input / 60 Hz | 16.7 ms |
Source: Optoma’s published ratings; we found no independent measurement. Its fastest figure (8.4 ms at 1080p / 120 Hz) is quicker than 62 of the 96 projectors with a lag figure in our input lag database, which lists each model's fastest mode.
Optoma GT2400HDR alternatives at a similar price
In-stock 1080p projectors priced closest to it on Amazon today.
| Model | Price today | Amazon rating | Compare |
|---|---|---|---|
| Optoma GT2400HDR (this one) | $1,299 | — | — |
| ASUS ProArt A1 Professional Projector Calman Verified with 3 | $1,300 | 4.0★ | — |
| Epson Pro EX11000 3-Chip 3LCD Full HD 1080p Wireless Laser P | $1,267 | 4.7★ | — |
| Optoma GT2100HDR Short Throw Full HD Home Laser Projector | $1,213 | 4.0★ | — |
| Optoma GT3500HDR 1080p Full HD Home Laser Projector | $1,499 | 3.9★ | — |
Where it fits
Optoma GT2400HDR FAQ
- How far from the screen should the Optoma GT2400HDR be for a 100-inch image?
- About 3' 7" from lens to screen. It has a fixed 0.496:1 lens, so each screen size has one distance.
- What is the input lag of the Optoma GT2400HDR?
- 1080p / 120 Hz: 8.4 ms; 1080p / 60 Hz: 16.7 ms; 4K input / 60 Hz: 16.7 ms. Source: Optoma’s published ratings; we found no independent measurement.
- Does the Optoma GT2400HDR have lens shift?
- No. It has a fixed 0.496:1 short-throw lens with no lens shift and no optical zoom, so the image size and position are set by where the projector sits.
Sources
Price, stock and rating come from Amazon and update automatically (last checked Nov 14, 2026, 10:01 PM).
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