Between the Nebula Cosmos Laser SE and UHD35STx, the Nebula Cosmos Laser SE comes out ahead in light source, while the UHD35STx wins on brightness / resolution. Overall, the Nebula Cosmos Laser SE scores 60.8 and the UHD35STx scores 89.1 on our Mars Score.
Which should you buy?
The UHD35STx is the clear pick on raw spec strength, leading by 28.3 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Nebula Cosmos Laser SE if you care most about light source. The biggest gaps in its favor are light source.
Pick the UHD35STx if you care most about brightness / resolution. Its strongest claims are brightness, resolution, short-throw.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
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 Anker - Nebula Cosmos Laser SE wins
- ▲Light source: Laser (vs Lamp).
Why Optoma - UHD35STx wins
- ▲Brightness — 100.00% more. 3600 lm vs 1800 lm.
- ▲Resolution: 4K (vs 1080p).
- ▲Short-throw: true (vs false).
Spec comparison
Image
| Spec | Anker - Nebula Cosmos Laser SE | Optoma - UHD35STx |
|---|---|---|
| Resolutionⓘ | 1080p | 4Klead |
| Brightness | 1800 lm | 3600 lmlead |
| Contrast | 2000:1 | 1000000:1 |
| Light source | Laserlead | Lamp |
| Short-throw | false | truelead |
Smart & Connectivity
| Spec | Anker - Nebula Cosmos Laser SE | Optoma - UHD35STx |
|---|---|---|
| Smart OS | Google TV | None |
| HDMI inputs | 1 | 2lead |
| Built-in speakers | true | true |
Spec-level deep dives
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