Between the EpiqVision Ultra LS650 and UHD35STx, the EpiqVision Ultra LS650 comes out ahead in light source, while the UHD35STx wins on several specs. Overall, the EpiqVision Ultra LS650 scores 89.1 and the UHD35STx scores 89.1 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes, with the decision sitting on which individual spec advantages weigh more for your use.
Pick the EpiqVision Ultra LS650 if you care most about light source. The biggest gaps in its favor are light source.
The UHD35STx similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable brightness, resolution, short-throw, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Epson - EpiqVision Ultra LS650 wins
- ▲Light source: Laser (vs Lamp).
Why Optoma - UHD35STx wins
- No decisive advantages.
Spec comparison
Image
| Spec | Epson - EpiqVision Ultra LS650 | Optoma - UHD35STx |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightness | 3600 lm | 3600 lm |
| Contrast | 2500000:1 | 1000000:1 |
| Light source | Laserlead | Lamp |
| Short-throw | true | true |
Smart & Connectivity
| Spec | Epson - EpiqVision Ultra LS650 | Optoma - UHD35STx |
|---|---|---|
| Smart OS | Android TV | None |
| HDMI inputs | 3lead | 2 |
| Built-in speakers | true | true |
Frequently asked
Spec-level deep dives
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