BenQ TK700STi: Specs, Throw Distance & Alternatives
A short-throw 4K UHD gaming projector with a lamp light source and an included Android TV dongle for streaming. BenQ rates it at 3,000 ANSI lumens and 16.7 ms input lag at 4K/60, dropping to 4.2 ms at 1080p/240. It has no lens shift, so placement is set by its 0.9–1.08:1 lens and fixed offset.
Is the BenQ TK700STi right for you?
Good for
- Small rooms: a 0.9–1.08:1 lens; BenQ’s datasheet gives a 100-inch image from about 6.5 ft
- Console gaming at 4K/60 (rated 16.7 ms) or 1080p/120 (8.3 ms)
- High-refresh PC gaming at 1080p/240 (rated 4.2 ms)
- Streaming through the included Android TV dongle, which also adds Wi-Fi and Bluetooth
What to plan for
- No lens shift and a fixed 110% offset, so the mount or table height has to be right
- Streaming runs on the Android TV dongle (Android 10); BenQ lists Google Cast as not available
- A 1.2x manual zoom with manual focus
- BenQ lists HDR, HDR Game and HLG modes but does not name HDR10 on its spec page
- A single 5 W speaker; one HDMI port supports eARC for a soundbar
Based on manufacturer specifications and published reviews (sources below). We don't do hands-on testing.
BenQ TK700STi specs
| Resolution | 4K UHD (3840 × 2160, DLP) |
|---|---|
| Brightness | 3,000 ANSI lumens (BenQ rating) |
| Display technology | DLP |
| Light source | Lamp (240 W) |
| Lamp life (Normal mode) | 4,000 hours |
| Contrast ratio | 10,000:1 (BenQ rating) |
| Throw ratio | 0.9-1.08:1 |
| Lens shift | None (fixed 110% vertical offset) |
| Max refresh rate | 240 Hz |
| HDMI ports | 2 (HDMI 2.0b) |
| Speakers | 5 W |
| Weight | 6.8 lb |
How far from the screen?
Lens-to-screen distance for a 16:9 image, calculated from its 0.9-1.08:1 throw ratio. The zoom lets you place it anywhere in the range.
| Screen | Closest | Farthest |
|---|---|---|
| 80″ | 5' 3" | 6' 3" |
| 100″ | 6' 6" | 7' 10" |
| 120″ | 7' 10" | 9' 5" |
| 150″ | 9' 10" | 11' 9" |
BenQ TK700STi input lag by mode
| Signal | Input lag |
|---|---|
| 4K / 60 Hz | 16.7 ms |
| 1080p / 60 Hz | 16.7 ms |
| 1080p / 120 Hz | 8.3 ms |
| 1080p / 240 Hz | 4.2 ms |
Source: BenQ’s published ratings; ProjectorCentral measured 16.9 ms at 1080p/60, 8 ms at 1080p/120 and 4 ms at 1080p/240. Its fastest figure (4.2 ms at 1080p / 240 Hz) is quicker than 77 of the 96 projectors with a lag figure in our input lag database, which lists each model's fastest mode.
BenQ TK700STi alternatives at a similar price
In-stock 4K projectors priced closest to it on Amazon today.
| Model | Price today | Amazon rating | Compare |
|---|---|---|---|
| BenQ TK700STi (this one) | $1,899 | — | — |
| Formovie Theater Ultra Short Throw 4K Laser Projector | $1,700 | 3.7★ | — |
| AWOL VISION LTV-3000 Pro 4K 3D Ultra Short Throw Triple Lase | $1,699 | — | — |
| Hisense C2 Pro | $1,698 | — | — |
| Epson Home Cinema 3800 4K PRO-UHD 3-Chip Projector with HDR | $1,649 | 4.4★ | — |
BenQ TK700STi head-to-head comparisons
- BenQ TK700STi vs BenQ TK710STi
BenQ’s short-throw 4K lamp classic against its laser successor
Where it fits
BenQ TK700STi FAQ
- How far from the screen should the BenQ TK700STi be for a 100-inch image?
- Between 6' 6" and 7' 10" from lens to screen, depending on the zoom setting (throw ratio 0.9-1.08:1).
- What is the input lag of the BenQ TK700STi?
- 4K / 60 Hz: 16.7 ms; 1080p / 60 Hz: 16.7 ms; 1080p / 120 Hz: 8.3 ms; 1080p / 240 Hz: 4.2 ms. Source: BenQ’s published ratings; ProjectorCentral measured 16.9 ms at 1080p/60, 8 ms at 1080p/120 and 4 ms at 1080p/240.
- Does the BenQ TK700STi have lens shift?
- No. It has a fixed 110% vertical offset and a 1.2x manual zoom, so the image position is set by where the projector sits.
Sources
Price, stock and rating come from Amazon and update automatically (last checked Nov 14, 2026, 8:00 PM).
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