Between the UHD35STx and The Premiere 9, the UHD35STx comes out ahead in brightness, while the The Premiere 9 wins on light source. Overall, the UHD35STx scores 89.1 and the The Premiere 9 scores 86.9 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (89.1 vs 86.9). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the UHD35STx if you care most about brightness. The biggest gaps in its favor are brightness.
Pick the The Premiere 9 if you care most about light source. Its strongest claims are light source.
Both ship with comparable resolution, short-throw, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Why Optoma - UHD35STx wins
- ▲Brightness — 4.35% more. 3600 lm vs 3450 lm.
Why Samsung - The Premiere 9 wins
- ▲Light source: Laser (vs Lamp).
Spec comparison
Image
| Spec | Optoma - UHD35STx | Samsung - The Premiere 9 |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightness | 3600 lmlead | 3450 lm |
| Contrast | 1000000:1 | 2200000:1 |
| Light source | Lamp | Laserlead |
| Short-throw | true | true |
Smart & Connectivity
| Spec | Optoma - UHD35STx | Samsung - The Premiere 9 |
|---|---|---|
| Smart OS | None | Tizen |
| HDMI inputs | 2 | 3lead |
| Built-in speakers | true | true |
Spec-level deep dives
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