Skip to content
BenQ TH671ST
BenQRanked #5

BenQ TH671ST

The longtime default recommendation for entry-level golf simulators — Carl's Place, Rapsodo, and PGA Tour Superstore all sell it packaged specifically for sim bays, and BenQ maintains a dedicated golf-simulator page for it. Its 3,000 ANSI lumens, 0.69-0.83:1 short throw with 1.2x optical zoom, and 16.7 ms input lag remain a proven, well-documented formula. The catch in 2026: it uses a lamp rather than a laser, and at its current Amazon price it costs more than the brighter, laser-based Optoma GT2000HDR.

We may earn a commission when you buy through our links.

Our Verdict

The most proven projector in home golf simulation — sim specialists from Carl's Place to Rapsodo have packaged it for years, and its 1.2x zoom makes placement more forgiving than any fixed-lens Optoma. It ranks last in 2026 on hardware economics alone: its lamp dims with age and lacks dust sealing, and at its current Amazon price it costs more than the brighter, laser-based GT2000HDR. Choose it for the track record and zoom flexibility, not the spec sheet.

Score Breakdown

Image Brightness & Quality8/10
Input Lag8.6/10
Throw & Mounting Flexibility8.8/10
Reliability & Maintenance7.2/10
Value8.2/10

Pros & Cons

Pros

  • The most proven projector in home golf simulation, with years of owner installs and setup guides from Carl's Place, Rapsodo, and other sim specialists
  • 1.2x optical zoom and auto vertical keystone make placement more forgiving than any fixed-lens Optoma
  • 16.7 ms input lag and a dedicated low-latency game mode keep simulator response crisp
  • Dual HDMI inputs and a built-in 5W speaker simplify simple one-cable setups

Cons

  • Lamp light source dims over time and eventually needs replacement (rated 4,000 hours in normal mode, up to 15,000 in LampSave) — every laser pick here is rated 20,000-30,000 hours
  • At around $949 on Amazon it currently costs more than the brighter, laser-based Optoma GT2000HDR
  • No dust sealing, which matters in garage bays where turf infill and dust circulate

Specifications

Resolution1080p Full HD
Rated Brightness3,000 ANSI lumens
Throw Ratio0.69–0.83:1 (short throw)
Lowest Input Lag16.7 ms (1080p/60Hz)
Light SourceLamp (DLP)
Light Source Life4,000–15,000 hours (LampSave)
Zoom & Adjustment1.2x optical zoom, auto vertical keystone
100" Image FromAbout 4.9 ft

Who Is This For?

Best For

  • Buyers who want the most documented, widely-supported entry sim projector
  • Installs that need zoom flexibility on a budget
  • Multi-use rooms where the projector doubles for movies and gaming

Not For

  • Set-and-forget garage installs (lamp maintenance, no dust sealing)
  • Bright rooms needing 4,000+ lumens
  • Buyers comparing strictly on price-per-lumen against the laser Optomas

Where to Buy

Appears In

Customer Reviews

Alternatives to Consider

BenQ TK710STi

BenQ

The only true 4K projector in this group, and the sharpest image you can put on an impact screen without leaving Amazon. Its 3,200-lumen laser light source (ProjectorCentral's lab measured about 2,478 ANSI in the brightest mode) runs up to 20,000 hours with no lamp swaps, and its 0.69-0.83:1 short-throw lens with 1.2x optical zoom fills a 10-foot-wide screen from roughly 7 feet — with real placement flexibility the fixed-lens Optomas below can't match. Input lag is exceptional: 4.2 ms at 1080p/240Hz and 16.7 ms at 4K/60Hz, so GSPro and E6 ball flight renders effectively instantly.

Optoma GT2400HDR

Optoma

Optoma's newest short-throw laser, and the first in its GT line marketed explicitly as golf-simulation-ready, with a dedicated golf sim picture mode. It pairs the brightest output in this group (4,200 lumens) with the lowest input lag (8.4 ms at 1080p/120Hz) and a 0.496:1 fixed lens that fills a 100-inch image from about 3.6 feet — ideal for bays as shallow as 10 feet. The DuraCore laser is rated for 30,000 hours and the optical engine carries an IP6X dust-protection rating, a meaningful spec for garage bays full of turf fibers and ball debris.

Optoma GT2100HDR

Optoma

The established favorite among golf-sim builders — Golfstead's 2026 guide ranks it the #1 golf simulator projector outright — and the projector the newer GT2400HDR is built to succeed. It delivers the same 4,200-lumen DuraCore laser and 0.496:1 fixed short throw as its successor, with 8.6 ms input lag at 1080p/120Hz and an IP6X dust-resistant engine rated for 30,000 hours. It typically sells for less than the GT2400HDR, making it the cheapest route to Optoma's full-brightness laser platform.

Optoma GT2000HDR

Optoma

The cheapest laser projector in this group, and the budget pick that doesn't give up the specs that matter most for a sim bay. It keeps the same 0.496:1 fixed short throw, 30,000-hour DuraCore laser, IP6X dust rating, and 8.6 ms gaming input lag as its bigger siblings, trading down only on brightness — 3,500 lumens versus their 4,200. Golf-sim specialty retailers including The Indoor Golf Shop, Golf Sim Depot, and Top Shelf Golf all sell it specifically as a golf simulator projector.