BenQ TH575i
#1 in Native 1080pFull review
A bright, gaming friendly 1080p projector for living rooms, with Google TV in the box. A good pick if you can live with replacing a lamp.
Amazon $649$649
The BenQ TH575i is the better projector overall, rated 4.6 to 3.8. The BenQ TH575i leads on streaming, setup and warranty. The Optoma GT1080HDR wins on gaming. The BenQ TH575i costs $150 less ($649 vs $799).
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
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 BenQ TH575i for streaming (Google TV with licensed Netflix vs no built-in apps; needs a streaming stick), setup (Auto keystone, 1.1x zoom vs Manual focus and keystone) and warranty (3-year warranty vs 1-year warranty).
- Choose the Optoma GT1080HDR for gaming (8.4 ms input lag vs 16.7 ms input lag).
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 | BenQ TH575i | Optoma GT1080HDR |
|---|---|---|
| Overall rating | 4.6/5 | 3.8/5 |
| Brightness 25% | 100 3,800 ANSI lumens | 100 3,800 ISO 21118 lumens |
| Value 15% | 98 $0.17 per lumen | 93 $0.21 per lumen |
| Resolution 10% | 100 1920 x 1080 native | 100 1920 x 1080 native |
| Streaming 15% | 100 Google TV with licensed Netflix | 0 no built-in apps; needs a streaming stick |
| Setup 10% | 50 Auto keystone, 1.1x zoom | 0 Manual focus and keystone |
| Light life 10% | 69 15,000 hour lamp | 69 15,000 hour lamp |
| Gaming 10% | 79 16.7 ms input lag | 99 8.4 ms input lag |
| Warranty 5% | 100 3-year warranty | 0 1-year warranty |
Specifications
| BenQ TH575i | Optoma GT1080HDR | |
|---|---|---|
| Picture | ||
| Brightness | 3,800 ANSI | 3,800 ISO 21118 |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 1080p | 1080p |
| Display | DLP | DLP |
| Light source | lamp | lamp |
| Light source life | 15,000 hours | 15,000 hours |
| HDR | - | HDR |
| Color gamut | 88% Rec.709 | - |
| Native contrast | 15,000:1 | - |
| Dynamic contrast | - | 50,000:1 |
| Placement | ||
| Throw | Standard throw (1.5:1) | Short throw (0.5:1) |
| Largest image | 300 in | 306.8 in |
| Autofocus | No | No |
| Auto keystone | Yes | No |
| Obstacle avoidance | No | No |
| Auto screen fit | No | No |
| Optical zoom | 1.1x | None |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | None |
| Input lag | 16.7 ms | 8.4 ms |
| Top refresh rate | 120 Hz | 120 Hz |
| HDMI ports | 1 | 2 |
| eARC | No | No |
| Speakers | 10 W | 10 W |
| Build | ||
| Battery | None | None |
| Fan noise | 34 dB | 26 dB |
| Power | 295 W | 285 W |
| Dimensions | 11.7 x 9.3 x 4.7 in | 12.44 x 9.61 x 4.25 in (W x D x H) |
| Weight | 5.1 lb | 6.6 lb |
| Warranty | 3 years | 1 years |
| Released | 2026-07 | 2019-09 |