Best BenQ Projector: AK700ST vs LK830ST vs TK710STi

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BenQ dominates the golf simulator projector market, and it’s not close.

Walk into any sim room on Reddit, any forum thread about projectors, any Facebook group for home sim builders, and the same name keeps coming up: BenQ. The AK700ST is the most recommended projector in the home sim community. The LK830ST is the ultra-short throw workhorse. The TK710STi is the value 4K king.

|But there are six BenQ models that work for golf sims, and they range from $1,299 to $4,899. They all look similar on paper. They all say “4K” or “1080p” and “laser” or “lamp.” They all have “short throw” in the name. How do you pick?

|I’ve spent time with four of these projectors in actual sim builds. I’ve read the specs, tested the features, and figured out which ones matter and which ones are marketing fluff.

The Six BenQ Projectors for Golf Sims

Model	Price	Resolution	Lumens	Throw Ratio	Key Feature
AK700ST	$2,899	4K UHD	4,000	0.69-0.83	Auto Screen Fit + Golf Mode
LK830ST	$2,499	WUXGA (1080p)	4,000	0.495:1 (UST)	Ultra-short throw, zero shadows
TK710STi	$1,999	4K UHD	3,200	0.69-0.83	Best 4K value for dark rooms
AH500ST	$1,999	1080p	4,000	0.69-0.83	Best budget option, no Auto Fit
AH700ST	$2,299	1080p	4,000	0.69-0.83	1080p with Auto Screen Fit
LK936ST	$4,899	4K UHD	5,500	0.78-0.99	Commercial-grade, overkill for home

What Actually Matters in a Sim Projector

The projector industry loves to throw numbers at you. Most of them don’t matter for a golf simulator.

Throw ratio matters. This is the single most important spec. Your projector needs to fill your screen from wherever you mount it. A short throw (0.5:1 to 0.8:1) means the projector sits 5-8 feet from the screen for a 120-inch image. An ultra-short throw (under 0.5:1) means it sits 3-4 feet away. Standard throw (1.2:1+) means it’s 12+ feet away and likely behind your hitting area — which means you’re casting shadows on your screen every time you swing.

Brightness matters, but not how you think. 4,000 lumens is the gold standard. You can get away with 3,000 in a dark basement. You need 5,000+ if your garage has windows or you leave the lights on. But brightness is a spectrum, not a checkbox. A 3,200-lumen projector in a dark room looks better than a 5,000-lumen projector with lights on. Know your room first.

Resolution matters, but less than you’d think. 4K is beautiful. 1080p is fine. I’ve watched guys stand in front of a 1080p image on a 120-inch screen and say “this is incredible” before I told them it wasn’t 4K. The screen quality and lighting matter more than the resolution difference. If your budget is under $2,500, buy 1080p and a better screen.

Laser vs lamp matters. Laser projectors last 20,000+ hours with zero maintenance. Lamp projectors need bulb replacements every 3,000-5,000 hours ($200-400 each). For a sim that runs 10 hours a week, a laser lasts 38 years. A lamp lasts 5-10 years with two bulb changes. Laser is worth the premium.

Dust protection matters if you’re in a garage. IP5X or IP6X rated means the projector seals against dust. Garage sims are dusty. Basement sims are fine. If you’re in a garage, get an IP5X+ projector or plan to clean your filters monthly.

The Pick: BenQ AK700ST ($2,899) — Best Overall

This is the projector I’d buy if I were building today. It’s the one I recommend to everyone who asks.

The AK700ST is the only projector in BenQ’s lineup that was built specifically for golf sims. Not a “we added Golf Mode to a conference room projector” — a purpose-built sim projector with features that solve actual problems.

Auto Screen Fit changes the installation experience. You mount the projector roughly in the right spot, press a button on the remote, and the projector uses its built-in camera to detect your screen edges and align the image perfectly. No ladder dance. No keystone menu. No “I’m pretty sure that’s straight.” Ten seconds. Done.

Golf Mode is a color profile calibrated for sim course graphics. Grass looks like grass. Sand looks like sand. Blue sky doesn’t oversaturate. It’s one setting you turn on and never think about again.

4K at 4,000 lumens means it handles any room condition. Dark basement? Looks incredible. Garage with the door cracked? Still bright enough. The 0.69-0.83 short throw works in most setups — 8-10 feet from the screen for a 120-inch image.

Curved screen warping is the future-proofing feature. If you ever build a curved screen (and more people are), the AK700ST supports image warping with 5x3 to 24x15 matrix options. No need to buy a second projector later.

Who should buy it: Anyone building a $4,000+ total setup who wants zero installation headache and the best image quality at the price. This is the default pick for 70% of sim builders.

Who should skip it: You’re on a strict budget under $2,000 for the projector. You need ultra-short throw because your room is too shallow for standard short throw. Your room is so dark that 3,200 lumens is more than enough and you’d rather save $900.

The Space-Saver: BenQ LK830ST ($2,499) — Best for Tight Rooms

The LK830ST is the projector you buy when your garage is shallow and you need the projector as close to the wall as possible.

The throw ratio is 0.495:1. That means it projects a 120-inch image from about 4 feet away. For comparison, the AK700ST needs about 8 feet for the same image. In a 12-foot-deep garage, the LK830ST sits behind your hitting area instead of behind your launch monitor. Less shadow risk. Less chance of getting hit by a follow-through.

The tradeoff? It’s WUXGA (1920x1200), not 4K. The image is excellent for 1080p — sharp, bright, and the 4,000 lumens punch through ambient light. But it’s not 4K. If you’re the kind of person who notices pixel structure from 10 feet away, this will bother you.

It’s also laser, IP5X dust-rated, and has 20,000 hours of life. Same reliability as the AK700ST. Just a different form factor.

Who should buy it: Your room depth is under 14 feet. You have a concrete ceiling (can’t mount the projector overhead). You prioritize shadow elimination over 4K resolution.

Who should skip it: You want 4K and have the room depth for it. You’re building in a basement or large garage with 14+ feet of depth.

The Value 4K: BenQ TK710STi ($1,999) — Best for Dark Rooms

The TK710STi is the projector you buy when you want 4K but your budget doesn’t stretch to $2,899.

It delivers true 4K at 3,200 lumens with a short throw (0.69-0.83) — same lens, same 4K resolution as the AK700ST. The difference is brightness and features. 3,200 lumens instead of 4,000. No Golf Mode. No Auto Screen Fit. No curved screen warping. No IP5X dust rating.

In a dark basement with controlled lighting, 3,200 lumens is more than enough. I’ve seen this projector on a 120-inch Carl’s Premium screen in a dark room, and it looks fantastic. The grass is green. The fairway detail is sharp. Nobody walks away thinking “I wish this was brighter.”

But in a garage with the lights on or natural light leaking in? The 3,200 lumens struggle. You’ll notice the difference. The image gets washed out, and you’ll wish you spent the extra $900 on the AK700ST.

Who should buy it: 4K is important to you. Your sim is in a basement or dark room. Your total sim budget is under $5,000.

Who should skip it: Your sim is in a garage with ambient light. You don’t want to mount a projector (Auto Screen Fit saves you an afternoon). You want Golf Mode or curved screen capability.

The 1080p Picks: AH500ST ($1,999) and AH700ST ($2,299)

If you’re fine with 1080p — and honestly, most people should be — BenQ has two solid options.

The AH500ST ($1,999) is the workhorse. 1080p, 4,000 lumens, lamp-based (not laser), short throw (0.69-0.83). It’s been the default BenQ golf projector for years. It’s bright enough for any room. The image quality is excellent for 1080p — sharp, clear, and the 4,000 lumens punch through ambient light better than any of the cheaper options.

The AH700ST ($2,299) is the AH500ST with Auto Screen Fit added. Same 1080p, same 4,000 lumens, same lamp. But you get the camera alignment feature that makes installation painless.

Both are lamp projectors. That means 3,000-5,000 hours before you need a $200-300 bulb replacement. If you run your sim 10 hours a week, that’s about 6-10 years before you change a bulb. Not nothing, but not a dealbreaker either.

Who should buy it: Your budget for the projector is under $2,500. You don’t care about 4K (and you probably shouldn’t at this budget — spend the savings on a better screen or mat). You want the brightest possible image for your money.

Who should skip it: You want 4K. You want laser (no maintenance). You want curved screen capability.

The Overkill: BenQ LK936ST ($4,899)

The LK936ST is a commercial-grade 4K laser projector with 5,500 lumens. It’s designed for conference rooms and lecture halls. It happens to work for golf sims.

At $4,899, it costs more than a lot of complete sim builds. You’d only buy this if (a) you have a very bright room with lots of ambient light, (b) you’re building a commercial sim facility, or (c) you want the absolute best projector money can buy and price isn’t a concern.

The 0.78-0.99 throw ratio is longer than the AK700ST’s 0.69-0.83, so you need more room depth. The IP6X dust rating is top-tier. The build quality is commercial-grade, which means it’s bigger, heavier, and built to run 12 hours a day, 365 days a year.

For home use? Buy the AK700ST. You won’t notice the 5,500 vs 4,000 lumen difference in your garage, and you’ll save $2,000.

How to Choose: The Decision Tree

Step 1: What’s your room depth?

• Under 12 feet: LK830ST (ultra-short throw)
• 12-14 feet: AK700ST or TK710STi (standard short throw)
• 14+ feet: Any of them — you’ve got options

Step 2: What’s your resolution budget?

• Under $2,000: AH500ST ($1,999, 1080p, lamp, 4,000 lumens)
• $2,000-$2,500: TK710STi ($1,999, 4K, laser, 3,200 lumens) or AH700ST ($2,299, 1080p with Auto Fit)
• $2,500-$3,000: AK700ST ($2,899, 4K, laser, Auto Fit, Golf Mode)
• $3,000+: AK700ST unless you need ultra-short throw, then LK830ST

Step 3: What’s your room lighting?

• Dark basement: TK710STi saves you $900 over AK700ST
• Garage with lights: AK700ST or AH500ST for the extra lumens
• Garage with windows: AK700ST or LK830ST

Step 4: Do you need Auto Screen Fit?

• Yes, and I hate ladder dancing: AK700ST (4K) or AH700ST (1080p)
• No, I enjoy the installation challenge: TK710STi, AH500ST, or LK830ST

My Recommendations by Budget

$2,000 budget: Buy the TK710STi ($1,999) if your room is dark. Buy the AH500ST ($1,999) if your room has ambient light. Both are excellent at this price, but they serve different lighting conditions. The TK710STi gives you 4K. The AH500ST gives you 4,000 lumens. Pick your priority.

$2,500 budget: Buy the LK830ST ($2,499) if your room is shallow and you need ultra-short throw. Otherwise, stretch to the AK700ST. The $400 difference is worth it for Auto Screen Fit and Golf Mode alone.

$2,900 budget: Buy the AK700ST ($2,899). This is the projector for most people. It’s the one I’d buy. It’s the one I recommend to friends. The Auto Screen Fit saves you an afternoon of ladder work. The Golf Mode makes the courses look better than any other projector at this price. The curved screen warping future-proofs your build. Just buy it.

$5,000+ budget: Buy the AK700ST anyway, and spend the other $2,000 on a better screen or mat. The LK936ST is for commercial installs. Your garage doesn’t need 5,500 lumens.

The Bottom Line

BenQ makes the best projectors for golf simulators because they’re the only manufacturer who’s actually paying attention to the category. The AK700ST is the first projector purpose-built for sims, and it shows. The LK830ST solves a specific problem (shallow rooms) that no other projector addresses as well. The TK710STi gives budget-conscious buyers 4K without sacrificing quality.

Pick the one that fits your room and your budget. They’re all good. They’re all reliable. They’re all supported by a company that knows this market exists.

If you’re still stuck, buy the AK700ST. It’s the right answer for 70% of builds. Auto Screen Fit alone is worth the price of admission — you’ll thank me the first time you install it and the image is perfect in ten seconds without climbing a ladder.

Ready for the full stack? Check our best projector for golf simulator guide for the complete landscape including Optoma, ViewSonic, and Epson models. Or go straight to the best 4K projector guide if resolution is your priority.