Head-to-head
BenQ TK860i vs Optoma GT2100HDR
Side-by-side comparison of the BenQ TK860i and Optoma GT2100HDR: throw ratio, brightness, resolution, input lag and price — plus which one to buy.
Quick verdict
The BenQ TK860i and Optoma GT2100HDR are both standard-throw projectors in a similar price range. The Optoma GT2100HDR is brighter — 4,200 vs 3,300 lumens. The Optoma GT2100HDR can sit closer to the screen (throw ratio from 0.50 vs 1.13). Both cost about $1,799. For gaming, the Optoma GT2100HDR has the lower input lag at 16 ms.
| Spec | BenQ TK860i | Optoma GT2100HDR |
|---|---|---|
| Throw ratio | 1.13–1.47 | 0.5 |
| Brightness | 3,300 lumens | 4,200 lumens |
| Resolution | 4K UHD | 4K UHD |
| HDR | Yes | Yes |
| Light source | lamp | lamp |
| Input lag | 17.9 ms | 16 ms |
| Price | ~$1,799 | ~$1,799 |
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Throw distance: BenQ TK860i vs Optoma GT2100HDR
How far each projector must sit from the screen for the same image size.
| Screen | BenQ TK860i | Optoma GT2100HDR |
|---|---|---|
| 80″ | 6.6–8.5 ft | 2.9 ft |
| 100″ | 8.2–10.7 ft | 3.6 ft |
| 120″ | 9.8–12.8 ft | 4.4 ft |
| 150″ | 12.3–16.0 ft | 5.4 ft |
Which should you buy?
- • Choose the Optoma GT2100HDR if a brighter picture in ambient light matters most.
- • Choose the Optoma GT2100HDR for gaming — lower input lag means more responsive play.
Frequently asked questions
The Optoma GT2100HDR is brighter, rated at 4,200 lumens versus 3,300 lumens.
More comparisons
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