Between the W5800 and X3100i, the W5800 comes out ahead in light source, while the X3100i wins on brightness. Overall, the W5800 scores 73.9 and the X3100i scores 84.6 on our Mars Score.
Which should you buy?
The X3100i is the clear pick on raw spec strength, leading by 10.7 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 W5800 if you care most about light source. The biggest gaps in its favor are light source.
Pick the X3100i if you care most about brightness. Its strongest claims are brightness.
Both ship with comparable resolution, short-throw, 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 - W5800 wins
- ▲Light source: Laser (vs LED).
Why BenQ - X3100i wins
- ▲Brightness — 26.92% more. 3300 lm vs 2600 lm.
Spec comparison
Image
| Spec | BenQ - W5800 | BenQ - X3100i |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightness | 2600 lm | 3300 lmlead |
| Contrast | 2000000:1 | 600000:1 |
| Light source | Laserlead | LED |
| Short-throw | false | false |
Smart & Connectivity
| Spec | BenQ - W5800 | BenQ - X3100i |
|---|---|---|
| Smart OS | None | Android TV |
| HDMI inputs | 2 | 2 |
| Built-in speakers | false | truelead |
Frequently asked
Spec-level deep dives
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