Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | BenQ - X3100i | XGIMI - Horizon Ultra |
|---|---|---|
| Brightness | 3300 lm | 2300 lm |
| Light source | LED | Laser |
Between the X3100i and Horizon Ultra, the X3100i comes out ahead in brightness, while the Horizon Ultra wins on light source. Overall, the X3100i scores 76.6 and the Horizon Ultra scores 68.7 on our Mars Score.
Which should you buy?
The X3100i edges ahead on the Mars Score (76.6 vs 68.7), but the 7.9-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. The single most decisive one: Brightness — 43.48% more. 3300 lm vs 2300 lm.
Pick the Horizon Ultra if you care most about light source. Its strongest claims are light source. The single most decisive one: Light source: Laser (vs LED).
Both ship with comparable resolution, short-throw, so those specs do not 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.
Which should you buy: BenQ - X3100i or XGIMI - Horizon Ultra?
BenQ - X3100i leads the current Mars Score by 7.9 points.The more useful decision is the trade-off behind that result: compare brightness, light source against the way you will actually use the product.
Choose BenQ - X3100i if…
BenQ - X3100i has the measurable edge on brightness lumens.
Choose XGIMI - Horizon Ultra if…
XGIMI - Horizon Ultra has the measurable edge on light source.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why BenQ - X3100i wins
- ▲Brightness — 43.48% more. 3300 lm vs 2300 lm.
Why XGIMI - Horizon Ultra wins
- ▲Light source: Laser (vs LED).
Spec comparison
Image
| Spec | BenQ - X3100i | XGIMI - Horizon Ultra |
|---|---|---|
| Resolutionⓘ | 4K | 4K |
| Brightnessⓘ | 3300 lmlead | 2300 lm |
| Contrast | 600000:1 | 2400:1 |
| Light source | LED | Laserlead |
| Short-throw | false | false |
Smart & Connectivity
| Spec | BenQ - X3100i | XGIMI - Horizon Ultra |
|---|---|---|
| Smart OS | Android TV | Android TV |
| HDMI inputs | 2 | 2 |
| Built-in speakers | true | true |