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 is the better projector overall, rated 4.7 to 4.4. The JMGO O2S Ultra leads on value and setup. The Hisense PX4-PRO wins on warranty and gaming. The JMGO O2S Ultra costs $1,798.97 less ($2,199 vs $3,997.97).
Hisense PX4-PRO
A bright, high contrast ultra short throw TV replacement for living rooms, and the pick for console and PC gamers who want 240Hz on a 100 inch or larger screen.
Amazon $3,997.97$3,997.97
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 JMGO O2S Ultra for value ($0.61 per lumen vs $1.14 per lumen) and setup (Autofocus, auto keystone vs Auto keystone).
- Choose the Hisense PX4-PRO for warranty (2-year warranty vs 1-year warranty) and gaming (1 ms input lag vs 15 ms input lag).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every ultra short throw projector; a clear win is highlighted. How we rank explains each one.
| Factor weight | JMGO O2S Ultra | Hisense PX4-PRO |
|---|---|---|
| Overall rating | 4.7/5 | 4.4/5 |
| Brightness 25% | 92 3,600 ISO lumens | 90 3,500 ANSI lumens |
| Value 15% | 93 $0.61 per lumen | 57 $1.14 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 100 Google TV with licensed Netflix | 100 VIDAA with licensed Netflix |
| Setup 10% | 100 Autofocus, auto keystone | 50 Auto keystone |
| Light life 10% | 100 30,000 hour RGB laser | 100 25,000 hour RGB laser |
| Gaming 10% | 83 15 ms input lag | 100 1 ms input lag |
| Warranty 5% | 0 1-year warranty | 50 2-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. |
Hisense PX4-PRO
No independent test published yet.
Specifications
| JMGO O2S Ultra | Hisense PX4-PRO | |
|---|---|---|
| Picture | ||
| Brightness | 3,600 ISO | 3,500 ANSI |
| Native resolution | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) |
| Picture resolution | 4K (pixel shift from 1920x1080) | 4K (pixel shift from 1920x1080) |
| Display | DLP | DLP |
| Light source | RGB laser | RGB laser |
| Light source life | 30,000 hours | 25,000 hours |
| HDR | Dolby Vision, HDR10 | Dolby Vision, HDR10+, HDR10, HLG |
| Color gamut | 110% BT.2020 | 118% BT.2020 |
| Native contrast | 4,000:1 | - |
| Dynamic contrast | 3,000,000:1 | 6,500:1 |
| Placement | ||
| Throw | Ultra short throw (0.2:1) | Ultra short throw (0.2:1) |
| Largest image | 150 in | 200 in |
| Autofocus | Yes | - |
| Auto keystone | Yes | - |
| Auto screen fit | - | Yes |
| Optical zoom | None | None |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | VIDAA, licensed Netflix |
| Input lag | 15 ms | 1 ms |
| Top refresh rate | 120 Hz | 240 Hz |
| HDMI ports | 2 | 4 |
| eARC | Yes | Yes |
| Speakers | 20 W | 66 W |
| Build | ||
| Battery | None | None |
| Fan noise | 26 dB | - |
| Power | 240 W | 250 W |
| Dimensions | 12.3 x 11.4 x 5.5 in (312 x 290 x 140 mm) | 21.3 x 11.3 x 5.6 in |
| Weight | 9.9 lb | 18.3 lb |
| Warranty | 1 years | 2 years |
| Released | 2025-10 | 2026-08 |