Between the X2-4K and Horizon Ultra, the X2-4K comes out ahead in brightness and short-throw, while the Horizon Ultra wins on several specs. Overall, the X2-4K scores 78.6 and the Horizon Ultra scores 69.1 on our Mars Score.
Which should you buy?
The X2-4K is the clear pick on raw spec strength, leading by 9.5 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 X2-4K if you care most about brightness and short-throw. The biggest gaps in its favor are brightness, short-throw.
The Horizon Ultra similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable resolution, light source, so those specs don't separate the two — focus on the differences below.
Bottom line: the X2-4K is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why ViewSonic - X2-4K wins
- ▲Brightness — 26.09% more. 2900 lm vs 2300 lm.
- ▲Short-throw: true (vs false).
Why XGIMI - Horizon Ultra wins
- No decisive advantages.
Spec comparison
Image
| Spec | ViewSonic - X2-4K | XGIMI - Horizon Ultra |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightness | 2900 lmlead | 2300 lm |
| Contrast | 3000000:1 | 2400:1 |
| Light source | Laser | Laser |
| Short-throw | truelead | false |
Smart & Connectivity
| Spec | ViewSonic - X2-4K | XGIMI - Horizon Ultra |
|---|---|---|
| Smart OS | Google TV | Android TV |
| HDMI inputs | 2 | 2 |
| Built-in speakers | true | true |
Spec-level deep dives
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