BenQ TK700STi vs. TK710STi: Which Projector Fits a Golf Simulator Better?

Published 26 September 2026 · Updated 12 October 2026

The TK710STi fits a shorter lens-to-screen distance than the TK700STi, so it is the stronger candidate when the older model's throw puts the projector behind the golfer or in the club path. The TK700STi uses a lamp, is rated at 3,000 ANSI lumens, and has a 0.90-1.08 throw ratio. The newer TK710STi uses a laser, is rated at 3,200 ANSI lumens, and cuts the throw ratio to 0.69-0.83. If both can make the image size you want, room geometry is the bigger difference.

Where the lens ends up

Throw ratio tells you how far the lens sits from the screen for a given image width. In a simulator, that helps determine whether the projector stays out of the club path and whether the golfer ends up standing in the beam.

Take a 12-foot-wide image. The TK700STi needs roughly 10.8 to 13.0 feet of throw, and the TK710STi roughly 8.3 to 10.0 feet. These are lens-to-screen distances, calculated as image width multiplied by throw ratio. The shorter throw can move the projector closer to the screen, but the mount, projector body, and beam still need to clear the swing and other ceiling hardware. BenQ publishes the ratios in its TK700STi specifications and TK710STi specifications.

Lamp or laser

BenQ rates the TK700STi lamp for 4,000 hours in Normal mode and up to 15,000 hours in LampSave mode. The TK710STi's laser light source is rated at 20,000 hours.

If the simulator runs several evenings a week, the laser mostly takes one chore off your list. It avoids scheduled replacement lamps, though the laser can still lose brightness over time. The rated light-source life is not a promise of unchanged brightness or a warranty period.

3,000 vs. 3,200 lumens

The TK700STi is rated at 3,000 ANSI lumens and the TK710STi at 3,200. That gap won't let you ignore ambient light.

If daylight or a bright fixture is hitting the impact screen, sort out the lighting first. Two hundred extra lumens can't save a washed-out screen.

Both are 4K and 16:9

BenQ lists both as 4K UHD (3840 by 2160) with a native 16:9 aspect ratio. Either can also display movies or games if the room does more than golf.

With an impact screen closer to 4:3 or 1:1, the image plan matters more than the 4K label. You may end up leaving part of the screen unused instead of stretching the picture.

Keeping a TK700STi

If you already own one and the lens lands in a safe place, the TK710STi's arrival doesn't mean you should replace it. In a room with enough throw distance, the older model still makes a sharp simulator image.

For a new build, compare the delivered projector price, mounting costs, and the lamp replacements you expect to need. The TK710STi puts the lens closer to the screen and uses a laser; that is useful only if its mounting range fits your room. For an existing room, measure before you upgrade.