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 3.9. The JMGO O2S Ultra leads on setup, brightness and value. The WEMAX Nova Pro wins on warranty. The WEMAX Nova Pro costs $400 less ($1,799 vs $2,199).
WEMAX Nova Pro
A mid-priced laser UST for watching movies and TV in a living room. Gamers should look elsewhere, since testing found it laggy.
Amazon $1,799.99 WEMAX $1,799$1,799
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 JMGO O2S Ultra for setup (Autofocus, auto keystone vs Manual focus and keystone), brightness (3,600 ISO lumens vs 2,100 ISO lumens) and value ($0.61 per lumen vs $0.86 per lumen).
- Choose the WEMAX Nova Pro for warranty (2-year warranty vs 1-year warranty).
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 | WEMAX Nova Pro |
|---|---|---|
| Overall rating | 4.7/5 | 3.9/5 |
| Brightness 25% | 92 3,600 ISO lumens | 54 2,100 ISO lumens |
| Value 15% | 93 $0.61 per lumen | 76 $0.86 per lumen |
| Resolution 10% | 100 4K (pixel shift) | 100 4K (pixel shift) |
| Streaming 15% | 100 Google TV with licensed Netflix | 100 Google TV with licensed Netflix |
| Setup 10% | 100 Autofocus, auto keystone | 0 Manual focus and keystone |
| Light life 10% | 100 30,000 hour RGB laser | 100 25,000 hour laser |
| Gaming 10% | 83 15 ms input lag | 50 input lag not published (neutral score used) |
| 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. |
WEMAX Nova Pro
| Tested by | Brightness | Input lag | Contrast | Conditions |
|---|---|---|---|---|
| The Smart Home Hookup: Best UST Projector of 2025 | 2,234 lm | - | - | 2,234 lumens in Office mode. It dropped frames at 120 and 240 Hz and was the only tested UST that did not stay under 50 ms at 4K/60 with keystone on. |
Specifications
| JMGO O2S Ultra | WEMAX Nova Pro | |
|---|---|---|
| Picture | ||
| Brightness | 3,600 ISO | 2,100 ISO |
| 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 | laser |
| Light source life | 30,000 hours | 25,000 hours |
| HDR | Dolby Vision, HDR10 | HDR10, HLG |
| Color gamut | 110% BT.2020 | 110% Rec.709 |
| Native contrast | 4,000:1 | 3,000:1 |
| Dynamic contrast | 3,000,000:1 | - |
| Placement | ||
| Throw | Ultra short throw (0.2:1) | Ultra short throw (0.2:1) |
| Largest image | 150 in | 150 in |
| Autofocus | Yes | - |
| Auto keystone | Yes | - |
| Optical zoom | None | None |
| Streaming and gaming | ||
| Built-in apps | Google TV, licensed Netflix | Google TV, licensed Netflix |
| Input lag | 15 ms | - |
| Top refresh rate | 120 Hz | - |
| HDMI ports | 2 | 2 |
| eARC | Yes | - |
| Speakers | 20 W | 30 W |
| Build | ||
| Battery | None | None |
| Fan noise | 26 dB | - |
| Power | 240 W | - |
| Dimensions | 12.3 x 11.4 x 5.5 in (312 x 290 x 140 mm) | 18.0 x 12.1 x 3.6 in |
| Weight | 9.9 lb | 15.4 lb |
| Warranty | 1 years | 2 years |
| Released | 2025-10 | 2025-08 |