Between the UHD35STx and Horizon S Max, the UHD35STx comes out ahead in brightness and short-throw, while the Horizon S Max wins on light source. Overall, the UHD35STx scores 89.1 and the Horizon S Max scores 81.6 on our Mars Score.
Which should you buy?
The UHD35STx edges ahead on the Mars Score (89.1 vs 81.6), but the 7.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the UHD35STx if you care most about brightness and short-throw. The biggest gaps in its favor are brightness, short-throw.
Pick the Horizon S Max if you care most about light source. Its strongest claims are light source.
Both ship with comparable resolution, so those specs don't separate the two — focus on the differences below.
Bottom line: the UHD35STx is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Optoma - UHD35STx wins
- ▲Brightness — 16.13% more. 3600 lm vs 3100 lm.
- ▲Short-throw: true (vs false).
Why XGIMI - Horizon S Max wins
- ▲Light source: Laser (vs Lamp).
Spec comparison
Image
| Spec | Optoma - UHD35STx | XGIMI - Horizon S Max |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightness | 3600 lmlead | 3100 lm |
| Contrast | 1000000:1 | 2800:1 |
| Light source | Lamp | Laserlead |
| Short-throw | truelead | false |
Smart & Connectivity
| Spec | Optoma - UHD35STx | XGIMI - Horizon S Max |
|---|---|---|
| Smart OS | None | Android TV |
| HDMI inputs | 2 | 2 |
| Built-in speakers | true | true |
Frequently asked
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.