The Quick Verdict
Get the BenQ AH700ST 1080P Short Throw Laser Golf Simulator Projector (Ace). Of these two, it's the one where BenQ lists a 1:1 mode for square impact screens and names a golf picture mode. Those are the sim-specific boxes. It lists at $2,299, $100 more at list than the other one. The BenQ TK710STi 4K HDR Laser Short Throw Projector is worth it for a 16:9 or 4:3 screen, where its lower input lag and 3840x2160 resolution count for more than a golf mode BenQ doesn't mention for it. Check price at The Indoor Golf Shop →
What They Have in Common
The lens figures are identical: a 0.69–0.83:1 throw ratio with 1.2x optical zoom. Both use a laser light source rated at 20,000 hours, both are 16:9 native, and both list 4:3 among their modes. Both offer ±30 degrees of vertical and horizontal keystone. Both came out in 2024, and both carry a three-year warranty, though the wording differs.
Where They Differ
Throw and image size: a dead heat
Image width = throw distance divided by throw ratio. With the same zoom lens on both, the figures match exactly. From 10 ft back, either one gives an image 12.0 ft to 14.5 ft wide (10 ft ÷ 0.83 to 10 ft ÷ 0.69). For a 10 ft wide image, either one sits 6.9 ft–8.3 ft from the screen.
Here's what that means for mounting. The lens sits closer to the screen than the image is wide. The zoom also gives you a 6.9-to-8.3 ft window instead of one exact spot, which is the slack for working around a joist or a light fixture. Neither of these is a deep-room projector. Measure from where the lens will sit to the screen and check it against that window. BenQ lists lens shift as "none" on the AH700ST and "N/A" on the TK710STi, so the zoom range is the only mounting slack BenQ gives figures for.
Screen shape and golf mode
This is where the AH700ST earns its pick. BenQ lists 1:1 among the AH700ST's modes. On the TK710STi, 1:1 isn't among the stated modes. That's not the same as saying it can't do it. BenQ just doesn't list it. On a 4:3 screen, BenQ states that mode for both.
The AH700ST has a golf mode by name. For the TK710STi, BenQ doesn't say either way. Seems like a lot to leave unanswered on a page about a sim bay.
Input lag and resolution
At 1080p 60Hz, the TK710STi is rated at 16.7 ms and the AH700ST at 33.4 ms. That's a 16.7 ms gap in the TK710STi's favour. The TK710STi is also 3840x2160 against the AH700ST's 1920x1080. BenQ doesn't say how the TK710STi produces its 4K, so I won't either.
Brightness, keystone, size, warranty
The AH700ST is listed at 4,000 lumens and the TK710STi at 3,200. BenQ doesn't state which measurement standard either figure uses. So I'm quoting them as listed and not making any call about what kind of room either one handles.
On keystone, the AH700ST does 2D correction. The TK710STi does 3D correction, adding ±30 degrees of rotation. The TK710STi weighs 6.8 lbs, 0.48 lbs lighter than the AH700ST's 7.28 lbs. Dimensions are 12.0 x 4.4 x 10.0 in for the TK710STi and 11.95 x 4.43 x 9.23 in for the AH700ST.
BenQ words the AH700ST warranty as "3 years parts and labor from purchase date (original retail purchaser), US." For the TK710STi, it simply says "3 years."
Who Should Buy Which
Get the BenQ AH700ST if:
- The impact screen is square. It's the only one of the two with 1:1 among its stated modes.
- You want a projector BenQ names a golf mode for, rather than one where the maker is silent.
- You'd rather have the 4,000-lumen listing and can live with 33.4 ms of input lag at 1080p 60Hz.
- The $2,299 list price, $100 over the other, is in range for the build.
Get the BenQ TK710STi if:
- The screen is 16:9 or 4:3, so the missing 1:1 mode doesn't come into it.
- Input lag is the spec you care about most. Its 16.7 ms is the lower figure.
- You want 3840x2160 resolution and the extra rotation keystone, and you don't need a named golf mode.
- The lower list price of $2,199 matters, and so does shaving 0.48 lbs off what goes on the ceiling mount.
The Bottom Line
The throw math doesn't separate these two at all. Same 0.69–0.83:1 lens, same 12.0 ft to 14.5 ft wide image from 10 ft back. So the call comes down to sim-specific features. The AH700ST has 1:1 in its stated modes and a named golf mode, and the TK710STi has neither on paper. If I had to bet on which one suits more impact-screen bays, it's the one built around those two features. The TK710STi's lower input lag is a real point, and it's the right pick for a 16:9 or 4:3 setup. For the default, though: