JMGO O2S Ultra
A compact, bright triple laser UST for replacing a TV in a living room with some daylight. Its very short throw suits shallow stands where other USTs won’t fit.
Amazon $2,399 JMGO $2,199$2,199
The JMGO O2S Ultra rates 4.7 among ultra short throw projectors; the BenQ TH575i rates 4.6 among 1080p and under ones. The BenQ TH575i costs $1,550 less ($649 vs $2,199).
BenQ TH575i
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
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 (ultra short throw and 1080p and under), 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 | JMGO O2S Ultra | BenQ TH575i |
|---|---|---|
| Overall rating | 4.7/5 | 4.6/5 |
| Brightness 25% | 92 3,600 ISO lumens | 100 3,800 ANSI lumens |
| Value 15% | 93 $0.61 per lumen | 98 $0.17 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 1920 x 1080 native |
| Streaming 15% | 100 Google TV with licensed Netflix | 100 Google TV with licensed Netflix |
| Setup 10% | 100 Autofocus, auto keystone | 50 Auto keystone, 1.1x zoom |
| Light life 10% | 100 30,000 hour RGB laser | 69 15,000 hour lamp |
| Gaming 10% | 83 15 ms input lag | 79 16.7 ms input lag |
| Warranty 5% | 0 1-year warranty | 100 3-year warranty |
Independent measurements
JMGO O2S Ultra
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| The Smart Home Hookup: Best UST Projector of 2025 | 4,081 lm | - | - | 4,081 lumens in Dynamic mode with fans at full speed (poor color); 2,454 lumens in its more accurate modes. Input lag stayed under 50 ms at 4K/60 with keystone on; no figure given. |
BenQ TH575i
No independent test published yet.
Specifications
| JMGO O2S Ultra | BenQ TH575i | |
|---|---|---|
| Picture | ||
| Brightness | 3,600 ISO | 3,800 ANSI |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 1080p |
| Display | DLP | DLP |
| Light source | RGB laser | lamp |
| Light source life | 30,000 hours | 15,000 hours |
| HDR | Dolby Vision, HDR10 | - |
| Color gamut | 110% BT.2020 | 88% Rec.709 |
| Native contrast | 4,000:1 | 15,000:1 |
| Dynamic contrast | 3,000,000:1 | - |
| Placement | ||
| Throw | Ultra short throw (0.2:1) | Standard throw (1.5:1) |
| Largest image | 150 in | 300 in |
| Autofocus | Yes | No |
| Auto keystone | Yes | Yes |
| Obstacle avoidance | - | No |
| Auto screen fit | - | No |
| Optical zoom | None | 1.1x |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | Google TV, licensed Netflix |
| Input lag | 15 ms | 16.7 ms |
| Top refresh rate | 120 Hz | 120 Hz |
| HDMI ports | 2 | 1 |
| eARC | Yes | No |
| Speakers | 20 W | 10 W |
| Build | ||
| Battery | None | None |
| Fan noise | 26 dB | 34 dB |
| Power | 240 W | 295 W |
| Dimensions | 12.3 x 11.4 x 5.5 in (312 x 290 x 140 mm) | 11.7 x 9.3 x 4.7 in |
| Weight | 9.9 lb | 5.1 lb |
| Warranty | 1 years | 3 years |
| Released | 2025-10 | 2026-07 |