Head-to-head
BenQ HT4550i vs BenQ X3100i
Side-by-side comparison of the BenQ HT4550i and BenQ X3100i: throw ratio, brightness, resolution, input lag and price — plus which one to buy.
Quick verdict
The BenQ HT4550i and BenQ X3100i are both standard-throw projectors in a similar price range. The BenQ X3100i is brighter — 3,300 vs 3,200 lumens. Both need roughly the same throw distance. The BenQ X3100i costs less — about $2,799 vs $2,999. For gaming, the BenQ X3100i has the lower input lag at 16.67 ms.
| Spec | BenQ HT4550i | BenQ X3100i |
|---|---|---|
| Throw ratio | 1.15–1.5 | 1.15–1.5 |
| Brightness | 3,200 lumens | 3,300 lumens |
| Resolution | 4K UHD | 4K UHD |
| HDR | Yes | Yes |
| Light source | LED | LED |
| Input lag | 17.9 ms | 16.67 ms |
| Price | ~$2,999 | ~$2,799 |
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Throw distance: BenQ HT4550i vs BenQ X3100i
How far each projector must sit from the screen for the same image size.
| Screen | BenQ HT4550i | BenQ X3100i |
|---|---|---|
| 80″ | 6.7–8.7 ft | 6.7–8.7 ft |
| 100″ | 8.4–10.9 ft | 8.4–10.9 ft |
| 120″ | 10.0–13.1 ft | 10.0–13.1 ft |
| 150″ | 12.5–16.3 ft | 12.5–16.3 ft |
Which should you buy?
- • Choose the BenQ X3100i if a brighter picture in ambient light matters most.
- • Choose the BenQ X3100i for gaming — lower input lag means more responsive play.
- • Choose the BenQ X3100i if you want to spend less for similar core performance.
Frequently asked questions
The BenQ X3100i is brighter, rated at 3,300 lumens versus 3,200 lumens.
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