Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Hisense - PX3-Pro | Optoma - UHD35STx |
|---|---|---|
| Brightness | 3000 lm | 3600 lm |
| Light source | Laser | Lamp |
Between the PX3-Pro and UHD35STx, the PX3-Pro comes out ahead in light source, while the UHD35STx wins on brightness. Overall, the PX3-Pro scores 74.3 and the UHD35STx scores 78.9 on our Mars Score.
Which should you buy?
The UHD35STx edges ahead on the Mars Score (74.3 vs 78.9), but the 4.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the PX3-Pro if you care most about light source. The biggest gaps in its favor are light source. The single most decisive one: Light source: Laser (vs Lamp).
Pick the UHD35STx if you care most about brightness. Its strongest claims are brightness. The single most decisive one: Brightness — 20.00% more. 3600 lm vs 3000 lm.
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.
Which should you buy: Hisense - PX3-Pro or Optoma - UHD35STx?
Optoma - UHD35STx leads the current Mars Score by 4.6 points.The more useful decision is the trade-off behind that result: compare brightness, light source against the way you will actually use the product.
Choose Hisense - PX3-Pro if…
Hisense - PX3-Pro has the measurable edge on light source.
Choose Optoma - UHD35STx if…
Optoma - UHD35STx has the measurable edge on brightness lumens.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Hisense - PX3-Pro wins
- ▲Light source: Laser (vs Lamp).
Why Optoma - UHD35STx wins
- ▲Brightness — 20.00% more. 3600 lm vs 3000 lm.
Spec comparison
Image
| Spec | Hisense - PX3-Pro | Optoma - UHD35STx |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightnessⓘ | 3000 lm | 3600 lmlead |
| Contrast | 3000:1 | 1000000:1 |
| Light source | Laserlead | Lamp |
| Short-throw | true | true |
Smart & Connectivity
| Spec | Hisense - PX3-Pro | Optoma - UHD35STx |
|---|---|---|
| Smart OS | Google TV | None |
| HDMI inputs | 3lead | 2 |
| Built-in speakers | true | true |