Between the Nebula Mars 3 and Horizon Ultra, the Nebula Mars 3 comes out ahead in several specs, while the Horizon Ultra wins on brightness and resolution. Overall, the Nebula Mars 3 scores 46.5 and the Horizon Ultra scores 69.1 on our Mars Score.
Which should you buy?
The Horizon Ultra is the clear pick on raw spec strength, leading by 22.6 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.
The Nebula Mars 3 doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the Horizon Ultra if you care most about brightness and resolution. Its strongest claims are brightness, resolution.
Both ship with comparable light source, short-throw, so those specs don't separate the two — focus on the differences below.
Bottom line: the Horizon Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Anker - Nebula Mars 3 wins
- No decisive advantages.
Why XGIMI - Horizon Ultra wins
- ▲Brightness — 130.00% more. 2300 lm vs 1000 lm.
- ▲Resolution: 4K (vs 1080p).
Spec comparison
Image
| Spec | Anker - Nebula Mars 3 | XGIMI - Horizon Ultra |
|---|---|---|
| Resolutionⓘ | 1080p | 4Klead |
| Brightness | 1000 lm | 2300 lmlead |
| Contrast | 1500:1 | 2400:1 |
| Light source | Laser | Laser |
| Short-throw | false | false |
Smart & Connectivity
| Spec | Anker - Nebula Mars 3 | XGIMI - Horizon Ultra |
|---|---|---|
| Smart OS | Android TV | Android TV |
| HDMI inputs | 1 | 2lead |
| Built-in speakers | true | true |
Frequently asked
Spec-level deep dives
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