Between the X3100i and X2-4K, the X3100i comes out ahead in brightness, while the X2-4K wins on light source and short-throw. Overall, the X3100i scores 84.6 and the X2-4K scores 78.6 on our Mars Score.
Which should you buy?
The X3100i edges ahead on the Mars Score (84.6 vs 78.6), but the 6.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the X3100i if you care most about brightness. The biggest gaps in its favor are brightness.
Pick the X2-4K if you care most about light source and short-throw. Its strongest claims are light source, short-throw.
Both ship with comparable resolution, so those specs don't separate the two — focus on the differences below.
Bottom line: the X3100i is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why BenQ - X3100i wins
- ▲Brightness — 13.79% more. 3300 lm vs 2900 lm.
Why ViewSonic - X2-4K wins
- ▲Light source: Laser (vs LED).
- ▲Short-throw: true (vs false).
Spec comparison
Image
| Spec | BenQ - X3100i | ViewSonic - X2-4K |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightness | 3300 lmlead | 2900 lm |
| Contrast | 600000:1 | 3000000:1 |
| Light source | LED | Laserlead |
| Short-throw | false | truelead |
Smart & Connectivity
| Spec | BenQ - X3100i | ViewSonic - X2-4K |
|---|---|---|
| Smart OS | Android TV | Google TV |
| HDMI inputs | 2 | 2 |
| Built-in speakers | true | true |
Frequently asked
Spec-level deep dives
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