Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Anker - Nebula Mars 3 | Optoma - UHD35STx |
|---|---|---|
| Brightness | 1000 lm | 3600 lm |
| Light source | Laser | Lamp |
| Resolution | 1080p | 4K |
| Short-throw | false | true |
Between the Nebula Mars 3 and UHD35STx, the Nebula Mars 3 comes out ahead in light source, while the UHD35STx wins on brightness / resolution. Overall, the Nebula Mars 3 scores 41.3 and the UHD35STx scores 78.9 on our Mars Score.
Which should you buy?
The UHD35STx is the clear pick on raw spec strength, leading by 37.6 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 Mars 3 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 / resolution. Its strongest claims are brightness, resolution, short-throw. The single most decisive one: Brightness — 260.00% more. 3600 lm vs 1000 lm.
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.
Which should you buy: Anker - Nebula Mars 3 or Optoma - UHD35STx?
Optoma - UHD35STx leads the current Mars Score by 37.6 points.The more useful decision is the trade-off behind that result: compare brightness, resolution, light source, short-throw against the way you will actually use the product.
Choose Anker - Nebula Mars 3 if…
Anker - Nebula Mars 3 has the measurable edge on light source.
Choose Optoma - UHD35STx if…
Optoma - UHD35STx has the measurable edge on brightness lumens, resolution, is short throw.
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 Anker - Nebula Mars 3 wins
- ▲Light source: Laser (vs Lamp).
Why Optoma - UHD35STx wins
- ▲Brightness — 260.00% more. 3600 lm vs 1000 lm.
- ▲Resolution: 4K (vs 1080p).
- ▲Short-throw: true (vs false).
Spec comparison
Image
| Spec | Anker - Nebula Mars 3 | Optoma - UHD35STx |
|---|---|---|
| Resolutionⓘ | 1080p | 4Klead |
| Brightnessⓘ | 1000 lm | 3600 lmlead |
| Contrast | 1500:1 | 1000000:1 |
| Light source | Laserlead | Lamp |
| Short-throw | false | truelead |
Smart & Connectivity
| Spec | Anker - Nebula Mars 3 | Optoma - UHD35STx |
|---|---|---|
| Smart OS | Android TV | None |
| HDMI inputs | 1 | 2lead |
| Built-in speakers | true | true |