Main trade-off
BenQ TK700ST
Lamp upkeep and separate streaming equipment remain part of ownership.
Head-to-head
Choose TK710STi for laser illumination and included Android TV when its shorter lens fits. Choose TK700ST when an existing mount around eight to nine feet must fill a 120-inch screen. Both are short throw, but their 120-inch optical intervals do not overlap.
Before you choose
An eight-foot lens position frames 120 inches with TK700ST. TK710STi’s maximum distance for that image is about 7.2 feet. Keeping the old mount would require another screen size or digital reduction. Price the mounting work before deciding.
What this is based on
BenQ TK700ST: 0.9 to 1.08 gives 7.84 to 9.41 ft. BenQ TK710STi: 0.69 to 0.83 gives 6.01 to 7.23 ft.
Main trade-off
Lamp upkeep and separate streaming equipment remain part of ownership.
Main trade-off
The shorter lens can make an existing short-throw mount unusable at your current screen size.


BenQ TK700ST vs TK710STi: compare lamp upkeep, included streaming and the surprising mount change hidden behind two short-throw model names.
Winner by situation
Only TK700ST frames that image optically from the current position.
TK710STi fits 120 inches at this distance.
Laser and the included source simplify this routine.
Both publish 16.7 ms in this format.
What matters in practice
An eight-foot lens position frames 120 inches with TK700ST. TK710STi’s maximum distance for that image is about 7.2 feet. Keeping the old mount would require another screen size or digital reduction. Price the mounting work before deciding.
BenQ TK700ST: 0.9 to 1.08 gives 7.84 to 9.41 ft. BenQ TK710STi: 0.69 to 0.83 gives 6.01 to 7.23 ft.
TK710STi removes routine lamp replacement from the plan. Its output rating is only about 7 percent higher, and neither value establishes calibrated output. Frequent evening viewing is a clearer reason to prefer laser than expecting a dramatic brightness jump.
BenQ TK700ST: Lamp source, 3,000 ANSI-lumen rating. BenQ TK710STi: Laser source, 3,200 ANSI-lumen rating. Difference 6.67 percent.
TK710STi includes Android TV, while this exact TK700ST needs an external source. For a first projector, compare the total with a streamer and its connections included. For a room already driven by a receiver, that advantage matters less.
BenQ TK700ST: Exact TK700ST package has no included streamer. BenQ TK710STi: Exact TK710STi includes Android TV.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
No complete verified optical range is stored for this exact model.
For a 120-inch 16:9 picture, the calculated lens range is about 6.01 to 7.23 ft. Your input is 9.50 ft.
Distance is measured from the lens to the screen. The calculation uses a 16:9 image and the verified optical throw range for each exact model.

BenQ, TK700ST
A lamp-based short-throw 4K model for a gaming room where the projector can sit ahead of the sofa.

BenQ, TK710STi
The short-throw TK710 variant brings the same laser brightness and low-latency modes much closer to the screen.
Meaningful differences
| What changes | BenQ TK700ST | BenQ TK710STi | Why it matters |
|---|---|---|---|
| 120-inch optical distance | About 7.8 to 9.4 ft | About 6.0 to 7.2 ft | A short-throw label does not establish drop-in mount compatibility. |
| Light source | Lamp, 3,000 ANSI lumens | Laser, 3,200 ANSI lumens | The maintenance distinction is larger than the 7 percent output-rating gap. |
| 4K/60 latency | 16.7 ms, published | 16.7 ms, published | The laser upgrade has no documented response advantage in this mode. |
| Streaming | Separate source | Included Android TV device | Check the exact ST versus STi package. |
What you give up
Recommendation switch
Choose BenQ TK700ST. You want to avoid moving the mount
Choose BenQ TK710STi. You use the projector often and want to avoid lamp changes
What the facts say
Useful conclusions from the current home projectors comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| BenQ TK700ST |
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| BenQ TK710STi |
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Ready to choose?
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Your existing lens position is eight to nine feet from 120 inches
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A six-to-seven-foot lens position works
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