Between the Nebula Cosmos Laser 4K and X3100i, the Nebula Cosmos Laser 4K comes out ahead in light source, while the X3100i wins on brightness. Overall, the Nebula Cosmos Laser 4K scores 70.7 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 13.9 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 Cosmos Laser 4K 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 Anker - Nebula Cosmos Laser 4K wins
- ▲Light source: Laser (vs LED).
Why BenQ - X3100i wins
- ▲Brightness — 37.50% more. 3300 lm vs 2400 lm.
Spec comparison
Image
| Spec | Anker - Nebula Cosmos Laser 4K | BenQ - X3100i |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightness | 2400 lm | 3300 lmlead |
| Contrast | 2200:1 | 600000:1 |
| Light source | Laserlead | LED |
| Short-throw | false | false |
Smart & Connectivity
| Spec | Anker - Nebula Cosmos Laser 4K | BenQ - X3100i |
|---|---|---|
| Smart OS | Android TV | Android TV |
| HDMI inputs | 1 | 2lead |
| Built-in speakers | true | true |
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.