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.
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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
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
| Resolution | 1080p Full HD |
| Rated Brightness | 3,000 ANSI lumens |
| Throw Ratio | 0.69–0.83:1 (short throw) |
| Lowest Input Lag | 16.7 ms (1080p/60Hz) |
| Light Source | Lamp (DLP) |
| Light Source Life | 4,000–15,000 hours (LampSave) |
| Zoom & Adjustment | 1.2x optical zoom, auto vertical keystone |
| 100" Image From | About 4.9 ft |
Quick Answers
What is the resolution of the BenQ TH671ST?
BenQ TH671ST resolution: 1080p Full HD.
What is the rated brightness of the BenQ TH671ST?
BenQ TH671ST rated brightness: 3,000 ANSI lumens.
What is the throw ratio of the BenQ TH671ST?
BenQ TH671ST throw ratio: 0.69–0.83:1 (short throw).
What is the lowest input lag of the BenQ TH671ST?
BenQ TH671ST lowest input lag: 16.7 ms (1080p/60Hz).
What is the light source of the BenQ TH671ST?
BenQ TH671ST light source: Lamp (DLP).
What is the light source life of the BenQ TH671ST?
BenQ TH671ST light source life: 4,000–15,000 hours (LampSave).
What is the zoom & adjustment of the BenQ TH671ST?
BenQ TH671ST zoom & adjustment: 1.2x optical zoom, auto vertical keystone.
What is the 100" image from of the BenQ TH671ST?
BenQ TH671ST 100" image from: About 4.9 ft.
How much does the BenQ TH671ST cost?
The BenQ TH671ST lists at $949 at Amazon as of July 18, 2026. Prices change often, so the merchant page shows the current figure.
Who is the BenQ TH671ST for?
It suits 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. It is not the right pick 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.
Is the BenQ TH671ST worth buying?
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. It ranks #5 in our Top 5 Projectors for Golf Simulators. 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.
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
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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.