The BenQ LH860ST is brighter (5,000 lumens against 3,200). The BenQ LH860ST throws a given image from closer (ratio 0.5 against 0.9). The BenQ TK710STi lists higher resolution (4K UHD). The BenQ LH860ST uses a laser light source; the other uses a lamp. The BenQ TK710STi costs $200 less at the prices we observed.
Side by side
| Specification | BenQ TK710STi | BenQ LH860ST |
|---|---|---|
| Brightness | 3,200 lm | 5,000 lm |
| Resolution | 4K UHD (3840 × 2160) | Full HD 1080p (1920 × 1080) |
| Native aspect | 16:9 | 16:9 |
| Throw ratio | 0.9–1.08:1 | 0.5:1 |
| Distance for a 10.5 × 8 ft 4:3 screen | 12′ 7″ | 7′ |
| Brightness on that screen | 29 fL | 45 fL |
| Light source | Lamp | Laser |
| Rated life | 15,000 h | 20,000 h |
| Zoom | 1.2× | Fixed |
| Lens shift | — | — |
| Input lag | About 17 ms (1080p game mode) | — |
| Price seen | $2,199 | $2,399 |
Highlighted rows differ. Figures come from each product's sources; room depth, distances and brightness are FOREference calculations using the same method for both.
Which should you choose?
BenQ TK710STi
Choose the BenQ TK710STi if image detail matters most or price leads the decision.
BenQ LH860ST
Choose the BenQ LH860ST if your room has ambient light or a large screen or you need to mount it close to the screen.
Before you buy either
- Check the room: room size calculator and ceiling height calculator.
- Confirm what each seller includes — accessories, software trials and bundles change often.
- Read the limitations on each full reference page.
FOREference compares published specifications; we have not tested these products side by side. How we work · Disclosure