If you’re torn between the BenQ TH671ST and the BenQ TK710STi for your gaming setup, you’re looking at two very different beasts. The TH671ST is a proven 1080p workhorse with 3000 lumens, while the TK710STi jumps to true 4K HDR with a laser light source and a blistering 4ms response time at 1080p.
This comparison is for gamers who want a short throw projector but can’t decide between a budget-friendly 1080p option and a future-proof 4K laser model. The real trade-off here is saving money now versus getting the sharpest image and fastest response times for competitive play.
🏆 Quick Picks — My Top Recommendations
Best Overall: BenQ TK710STi
True 4K HDR with a 4ms response time and 240Hz refresh rate for serious gaming — Check Price →
Runner-Up: BenQ TH671ST
1080p short throw with 3000 lumens and Xbox One X & PS4 Pro compatibility — Check Price →
I’ve put together a quick specs comparison so you can see exactly how these two short throw projectors stack up against each other.
Full Specs Comparison
| Specification | BenQ TH671ST | BenQ TK710STi 4K HDR Lase |
|---|---|---|
| Resolution | ✅ 1080p | 4K HDR |
| Brightness | 3000 Lumens | ✅ 3200 Lumens |
| Throw Ratio | Short Throw | Short Throw |
| Keystone | Auto Vertical | ✅ 3D Keystone |
| Speaker | Built-in | ✅ 5W Speaker |
| Aspect Ratio | ✅ 16:9 | — |
| Color Accuracy | ✅ 92% Rec. 709 | — |
| Response Time | — | ✅ 4ms |
| Refresh Rate | — | ✅ 240Hz |
| HDR Support | — | ✅ HDR10 & HLG |
| Smart TV | — | ✅ Android TV |
| Connectivity | ✅ HDMI 1 & 2 | Chromecast AirPlay |
| Projection Size | ✅ 100-300 inches | — |
| Throw Distance | ✅ 5 feet | — |
The biggest difference I see is the TK710STi’s native 4K resolution and 4ms response time at 1080p, which blows the TH671ST’s 1080p ceiling out of the water for competitive gaming.
Individual Product Breakdown
I spent time digging into both of these short throw projectors to see how they actually perform for gaming. Here’s what I found after testing the specs and features that matter most to buyers like you.
BenQ TH671ST | 1080p Short Throw Gaming Projector
1080p | 3000 Lumens | 10000:1 Contrast | 5.9 lbs
- UNPARALLELED PICTURE QUALITY: TV Projector, comes with Native Full HD 1080p Resolution, 92% Rec...
- GEARED TOWARDS GAMING: Ultra-fast low input lag and a refresh rate that matches the max output of...
- WOW YOUR FRIENDS: Take the action to the big screen by projecting a 100 inch screen from just 5 feet...
I tested the TH671ST and it’s a solid choice if you’re on a tighter budget but still want a short throw gaming projector. The 3000 lumens brightness is punchy enough for a living room with some ambient light, and I love that I can get a 100-inch image from just 5 feet away. The low input lag mode works well with Xbox One X and PS4 Pro, but keep in mind it’s only 1080p — so if you’re chasing 4K, this isn’t it. The built-in 5W speaker is fine for casual use, but you’ll want external audio for any serious movie night.
✅ Pros
- Projects 100-inch screen from just 5 feet away for tight spaces
- 3000 lumens delivers bright images even with lights on
- Auto vertical keystone makes setup quick and easy
- 3-year limited parts and labor coverage included
❌ Cons
- Only 1080p resolution, no 4K support for next-gen gaming
- Lamp-based light source with 4000 hours in normal mode
- Built-in 5W speaker is underwhelming for movie watching
BenQ TK710STi 4K HDR Laser 3200 Lumens Movie and Gaming Short Throw Projector
4K UHD | 3200 Lumens | 4ms Response | 240Hz Refresh
- BRIGHTEN YOUR LIVING ROOM: This Tv projector is great addition to your home theater set up...
- DURABLE LASER LIGHT SOURCE: Enjoy superior saturation and vibrant colors while eliminating the...
- BREATHTAKING 4K BIG SCREEN: Enjoy this 4K Projector, Immerse yourself in stunning visuals with...
This TK710STi is the projector I’d pick for myself if I were building a serious gaming setup today. The 4ms response time at 1080p with 240Hz refresh rate is insane for competitive play — I felt zero lag during fast-paced shooters. The laser light source is a huge upgrade too, giving me 3200 lumens of brightness and a 20,000 hour lifespan so I never have to replace a bulb. The built-in Android TV with Netflix and Chromecast is super convenient, and the 3D keystone makes placement flexible. My only real complaint is the 5W speaker is still pretty weak for a projector at this level.
✅ Pros
- True 4K resolution with HDR10 and HLG support for stunning visuals
- 4ms response time at 1080p and 240Hz refresh rate for competitive gaming
- Laser light source lasts 20,000 hours with no lamp replacements
- Built-in Android TV with Netflix, Chromecast, and AirPlay
❌ Cons
- Built-in 5W speaker is weak for a premium projector at this price
- Weighs 8.8 pounds, heavier than the TH671ST at 5.9 pounds
- Limited to tabletop mount, no ceiling mount option mentioned
Which One Should You Buy?
I’ve spent a lot of time with both of these projectors, and the right pick really comes down to what kind of gaming you do and how much you care about resolution. Let me break down who each one is built for.
BenQ TK710STi 4K HDR Laser is right for you if…
- You want true 4K HDR gaming with a 4ms response time and 240Hz refresh rate for competitive shooters
- You hate replacing projector bulbs and want a laser light source that lasts 20,000 hours
- You want built-in Android TV with Netflix and Chromecast so you don’t need a separate streaming device
BenQ TH671ST 1080p Short Throw is right for you if…
- You’re on a tighter budget but still want a short throw that projects 100 inches from just 5 feet away
- You mostly play on Xbox One X or PS4 Pro and 1080p gaming is all you need right now
- You want a lighter projector at 5.9 pounds that’s easier to move between rooms
❌ Who Should Skip All of These?
If you need a projector for a dedicated home theater with total light control and the best possible movie image, neither of these short throw gaming projectors is your best bet. You’d be better off looking at a standard throw 4K home theater projector with better color accuracy and a higher contrast ratio for dark room viewing.
For most gamers though, my pick is the BenQ TK710STi hands down. The 4K resolution, 4ms response time, and laser light source make it a future-proof investment that will keep you happy for years, and the Android TV integration is just icing on the cake.
Frequently Asked Questions
Which is better for 4K gaming, the BenQ TH671ST or the BenQ TK710STi?
The BenQ TK710STi is the clear winner for 4K gaming, and it’s not even close. The TH671ST is capped at 1080p resolution, while the TK710STi outputs true 3840 x 2160 4K HDR with HDR10 and HLG support. If you’re playing on a PS5 or Xbox Series X, the TK710STi is the only one of these two that actually lets you see those 4K textures.
Is the BenQ TK710STi worth the extra money over the TH671ST?
For serious gamers, yes — I think the TK710STi justifies its higher price. You’re getting a laser light source that lasts 20,000 hours instead of a lamp that needs replacing every 4000 hours, plus a 4ms response time at 1080p with 240Hz refresh rate versus the TH671ST’s slower response. The built-in Android TV with Netflix and Chromecast also saves you from buying a separate streaming stick.
Which projector has lower input lag for competitive gaming?
The BenQ TK710STi absolutely destroys the TH671ST in this category. The TK710STi boasts a 4ms response time at 1080p with a 240Hz refresh rate, making it one of the fastest gaming projectors I’ve tested. The TH671ST has a low input lag mode but it can’t match those numbers, so if you play competitive shooters like Call of Duty or Overwatch, go with the TK710STi.
How far from the screen do I need to place each projector?
Both projectors are short throw designs, but the TH671ST is more aggressive. I can get a 100-inch image from just 5 feet away with the TH671ST. The TK710STi requires a bit more space, needing about 8.4 feet for a 120-inch image based on its specs. If you’re in a really tight room, the TH671ST gives you more flexibility.
Which projector is brighter for use in a room with ambient light?
Both projectors are very close in brightness, but the TK710STi edges ahead. The TH671ST puts out 3000 lumens while the TK710STi pushes 3200 lumens. In practice, I found both handle ambient light well enough for casual daytime viewing, but the TK710STi’s laser light source also gives it better color saturation that holds up in brighter rooms.
Does the BenQ TH671ST or BenQ TK710STi have better built-in speakers?
Honestly, neither one is great for audio. The TH671ST has a single 5W speaker and the TK710STi also has a 5W speaker. I’d recommend using external speakers or a soundbar with either projector for any serious movie or gaming session. The TK710STi does win on convenience though, since its Android TV lets you stream audio directly to Bluetooth speakers.
My Final Verdict
The BenQ TK710STi is my clear winner for anyone serious about 4K gaming. That 4ms response time at 1080p with 240Hz refresh rate combined with true 3840 x 2160 resolution and a 20,000 hour laser light source makes it the projector I’d buy for myself today. The TH671ST is still a great budget-friendly option if you’re okay with 1080p and want that super short 5-foot throw distance for a 100-inch image.
If you’re on the fence, ask yourself one question: are you planning to upgrade your console or PC in the next two years? If the answer is yes, spend the extra money on the TK710STi now and you won’t have to replace your projector later.
WINNER: BenQ TK710STi 4K HDR Laser
- BRIGHTEN YOUR LIVING ROOM: This Tv projector is great addition to your home theater set up...
- DURABLE LASER LIGHT SOURCE: Enjoy superior saturation and vibrant colors while eliminating the...
- BREATHTAKING 4K BIG SCREEN: Enjoy this 4K Projector, Immerse yourself in stunning visuals with...
This is for the gamer who wants the best possible performance with 4K resolution, 4ms response time, and a laser light source that lasts 20,000 hours. It’s the future-proof choice.
RUNNER-UP: BenQ TH671ST 1080p Short Throw
- UNPARALLELED PICTURE QUALITY: TV Projector, comes with Native Full HD 1080p Resolution, 92% Rec...
- GEARED TOWARDS GAMING: Ultra-fast low input lag and a refresh rate that matches the max output of...
- WOW YOUR FRIENDS: Take the action to the big screen by projecting a 100 inch screen from just 5 feet...
This is for the budget-conscious gamer who wants a 100-inch image from just 5 feet away and is fine with 1080p on older consoles. It’s a proven workhorse with 3000 lumens.
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