BenQ TH671ST 1080p Short Throw Gaming Projector | Gaming Mode for Intense Low Input Lag Action | 3000 Lumens for Lights On Entertainment | 3 Year Industry Leading Warranty

The BenQ TH671ST has met all of my expectations in a golf sim projector. There is a reason why is it still the most popular among golf sim enthusiasts. Are there brighter and higher def projectors? Yes. But for a middle-of-the-road budget, its had to beat the BenQ. If you are building your own golf sim, as I did, my advice is to build your sim around your projector. in other words, let the projector specs determine you screen size, aspect ratio, and distance to screen.

I got this to try out projectors and make sure theyd work for me (replacing my TV in living room) before deciding which one I actually want (an Epson LS300) and for the price this seems perfectly fine. Projecting it into a pull-down EliteScreen, 84. During the day (no direct sunlight but a good amount of ambient light from windows) its just alright - low contrast but watchable, picture quality (as far as colors, contrast) is acceptable, not particularly good. At night with no ambient light, its good! Not incredible or impressive, but no complaints. If I was on an under-$1000 budget & had an always-dark room for this Id be happy with it. The UI for the menus and everything is very outdated feeling, and the perspective doesnt correct so if you use keystone (perspective) correction on the picture, the menus will be skewed. Built-in sound is fine, recommend using an HDMI switcher with optical out to connect real speakers and to connect more than 2 input things. Edit: Updating this after thinking more about it/using my LS300 to a 3-stars (considering the price) - even with the focus adjustment I could never get this to focus the entire view at once, the upper 1/3 was always blurry, & the image quality (not the projection quality but the colors and contrast) is really bad, impossible to adjust to look good

This thing is garbage. I really wish there were a zero stars option. My original review follows (unedited from when it was written, with a 2-star rating), with an addendum tacked on the end. Disregard anything remotely positive about the product. ADDITIONAL UPDATE. THIS IS SINGLY THE WORST ELECTRONICS COMPANY ON PLANET EARTH. They just charged my credit card for $1100 for a projector THEY asked me to hold onto temporarily to help THEM figure out what is wrong with it. I have NEVER been so upset with any company I have dealt with… IN LIFE. I’m reporting them to the BBB and Consumer Reports and any other consumer safeguarding or product review institution I can find. ——— This is a decent projector, especially at this price point… considering that the cheapest real and true “native 4K” projector is a Sony that costs over 5 grand, might as well go with a good 1080p until those native 4K units come down a bit. It’s easy to operate and setup, is pretty decent even without low light, is VERY short-throw which was a must in my situation, and generally looks good. I do have some issues, however. There is a problem getting an HDR picture for two of the three sources I use. I’m a bit of an A/V enthusiast, so I’m not unfamiliar with buried options menus and odd things that can affect things like this. I have isolated the problem to the projector (98.9% confidence level)… i.e. the projector isn’t recognizing the sources as being HDR compatible (and/or, because of the projector not recognizing that they are, the HDMI feedback loop makes the sources “think” that IT isn’t HDR compatible). This diagnosis and trying to get it sorted has taken an unbelievable amount of time (I’m talking like an entire day’s worth of my life wasted on it.). AND, the problem persists. Tech support has been very friendly, but not yet effective. And, they don’t seem to thoroughly read all of my communications, as evidenced by them repeatedly suggesting things I’ve already tried and have told them I’ve tried. What is most frustrating, however, is that it appears I will have to send the unit in… but just for a stupid firmware update. This is because you can’t use a USB thumb drive to do so. Apparently, this is one of their only models that can’t be updated this way. Even the tech who advised I update, after I suggested that maybe that was the problem, didn’t know it couldn’t be done this via USB stick. So, I had to go out and buy a USB-A male-to-male cable cause I haven’t needed one in years. To buy it, I exchanged the USB thumb drive I had purchased after the adviser told me I could do it that way (cause I never use those either). Two trips to the store, which was a TOTAL waste of time… plus $10 I can’t get back now, for a cable I’ll never use in life ever again. Here is why. GET THIS. You cannot load the firmware update software to the projector via tablet, phone, Macintosh desktop, or even a different PC that isn’t running specifically Microsoft Windows OS. I tried 6 different sources, including my wife’s work computer that she brought home for me for this purpose because it DOES run Windows. However, both it, and a friend’s laptop, completely rejected the firmware update program as being spyware or something. This. Is. ABSURD. Note: It is now functioning again, though still without HDR on the two sources. It got stalled out due to my putting it into the mode necessary to upload the firmware—instructions for that are in the form of a hard to see and cheap youtube video with no voiceover. Getting it back to working at all, and losing my tweaked picture settings in the process, took 4 restarts and more screwing around. So, now I have to send them all the necessary information to presumably ship me a box to send them the thing. 3 days to process the information I send in, for some reason. Then however long to get the box. Then packing it up (I assume I’m responsible if it’s damaged in transit.). Then however long for it to get to them. Then however long for them to update it (should be a minute but will almost certainly take a day or two). Then however long to get it back. Then I’ll have to reinstall it at my house and redo all the picture settings I had done previously. And… for all I know, the HDR might still not work. I’d look for another projector if I were you. ——— UPDATE. My replacement has arrived, and has a significant issue of some type. I cannot see anything. It’s barely visible in pitch black darkness. I struggled to even navigate the menu to crank the brightness all the way up, and turn off the eco power mode, and everything else I could think of. Since the remote doesn’t light up and has an awkward button layout, I had to use my phone to make that visible to try to adjust the thing… Astonishingly, the amount of light generated by the flashlight on my phone was enough to wash out the entire 100” picture. I would be on the floor rolling with laughter at how pathetic that is if I wasn’t out more than $1000 and robbed of probably 1 or 2 DAYS worth of time (no exaggeration). Right now, I’m just crossing my fingers and hoping they get my general inbox email before they close for the weekend (Is closing on the weekend still even a thing?). The hours they’re open are essentially bank/post-office hours, which is absurd cause that’s when many people are at work, not watching TV… You can’t reply to their emails related specifically to a warranty exchange/replacement, and (surprise surprise) they’re somehow “experiencing higher than normal call volume” (or whatever) every time I call, and the customer service phone number doesn’t have voicemail. So, here I sit, with 2 glorified paper weights and a $1,100 hold on my credit card, waiting for them to interrupt my work day to waste another couple hours not fixing my problem. I would sooner carve out my eyes with a dull grapefruit spoon and crawl naked up a mountain covered in poison-ivy-adorned burning cacti, rusty nails, and broken glass while drinking hemlock-infused rotten rat’s milk and fending off tick-ridden rabid wolves, poisonous snakes, and carnivorous locusts than buy another Ben Q product. Now then, I’m gonna go through my order history and find an A/V product made by a more a reputable and dependable company, like Radio Shack, so I can write a better review for something.

Picture Quality 10-10 The picture is great, very good colors and the blacks are very good too. The image is pixelated when sitting up close so the text is not anywhere as clear as a 4K, you will see a difference. 1080P is not bad, but a 4K resolution is far superior. I use a 106” screen and I sit about 8 feet and the image fills up the entire screen only at 5ft which is awesome! Compared to the Optoma UHD50X the Ht2150ST blacks are way better but the difference between 1080P and 4K is clear if you sit close to a huge screen. The input lag is low for this projector and for 1st person shooters its great but not anywhere as close to a 120hz monitor however so dont expect to be as good as your monitor will perform, also gaming on a huge screen on FPS shooters is hard because of the size of the screen. Build Quality 9-10 The build quality is very good! Compared to Optoma projectors including the HT143X/243X/UHD50X all look very similar but they are nothing special and look quiet cheap. This Benq model just looks great. Packaging 10-10 Benq packaging is very good quality, foam, projector wrapped in its own carrying case definitely better than the competition. Noise 10-10 The noise on this projector is barely noticeable. Benq Ht2150ST was very humble and quiet during all operations compared to the Optoma UHD50X which was much louder and was one of the main reasons I disliked the Optoma. Conclusion This is a great 1080P gaming projector with dark blacks, quiet operations, quality build, quality packaging and an overall better value compared to an Optoma UHD50X for $1,500. However 4K blows 1080P image out of the water when you sit close to the screen but when you are further away than 10 ft the clarity becomes less distinguishable between 4K and 1080P.

The first thing I found is that this projector is very easy to set up. The on-screen guide is one of the best Ive used. While the color and sharpness were really great, the brightness of just okay using it in an indoor gymnasium. To make is work, we needed to turn off some (not all) of the overhead lights (these are very bright). When we turned off those lights and used some dimmer ones, the color just popped! Over all, very satisfied and would recommend.

I came from a 200 dollar 1080p budget projector, and, after blasting it playing Elden Ring for too long it showed some burning spots on the projection, so, i decided to go for a quality projector. I wanted the X3000i, but the tv thing was useless for me, and then, this TH690ST came out and at specs is just like a X3000i but without the fancy streaming thing, so i got it. The image quality i GREAT the colors look GREAT man that red looks more saturated than on my gaming monitor O.O light effects look awesome as if they where coming from a monitor screen. Then, the issue...i started to really notice the rainbow effect when playing games and texts on screen. At first i started to play with the setting and it seemed as it was less prominent when proper refresh rates where used, but soon i understood it was inevitable, i just had to adapt to it, and so i did, now after using it for a good time i just got so used to the effect i barely even notice it, and if i do i just dont care anymore, i just enjoy the picture quality and forget about it :p So there, awesome projector, of course good for gaming cause of the 120HZ and game mode-low input, but everything looks great on it, i would say is better for a dark environment, but that goes for any projector...

I bought for outside use and it’s been great. I take in and out when not using it. This is a ST so it needs to be closer to screen. I mount to the mid of my gazebo and have a 110 inch screen and it’s been perfect. Also I was able to get a picture even during the daytime

Attached is pictures, with lights on and then in the dark. Even with the lights on its a strong picture. In person it looks better than the picture shows. Movies/TV, depends on your source. The better the source the better the image. But overall an awesome picture. Short throw, I have mine 5ft full zoom = 100 screen. I have my couch 9.5ft from the screen. Anything bigger I catch the rainbow effect. The awesome thing is, kids and most adults can be in front of the project about 3ft from the screen standing up and it does effect the screen with the person shadow. Which is always my thing I show off when I demonstrate this projector to my friends. Games, I dont notice lag, and its super fun to play games on such a huge screen. Noise, barely notice especially when a movie or game is on. I have this projecting on the wall with no screen. Everyone thinks I have a screen until I point it out. Edges are sharp enough to fool people to think I have a screen. Would I buy again, absolutely.. I think this was the best bang for the buck, and watching the new and better versions coming out... I still think this competes well! This projector has created a lot of memories and I cant wait to create so many more!

I just came from a bulb projector (TH700STi; I left a review there too) to this LED one, and cant believe people game in bulbs when this thing exists. Its so much better in every respect : color, lifespan, heat, noise, throw. Its revolutionary. Loses on brightness, but its more than good enough (I can see it clearly on a 120ft screen with the windows open in the daytime) and less fatiguing for gaming anyway. (SDR mode is way brighter than HDR mode for some reason). Image looks similar to when I use Virtual Desktop within a Oculus Quest 2, but less bright. Im also not seeing ANY rainbow effect, contrary to other reviews. Im so happy with it I want to save up for a x3000i (although hesitant since the throw is like 5 ft longer). Note to those buying used, mine was used and works perfectly fine except the eco blank button was not working (it just puts the projector on standby, a little quicker than restarting it) but Im totally fine with that.

This is a review for the BenQ HT2150ST. Seeing as Amazon combines numerous models into the same review pool, I felt the need to specify. I have only had the projector for a couple days so this is a honeymoon-phase review and I will try to remember to update this review later on after I have had a while to put it through the ringer. I will compare the 2150ST to the Optoma GT1080 in this review as well. Having said all of this, lets get to the review. **Picture Quality** This projectors picture quality is simply remarkable. I am highly critical of anything I purchase with my evaluation of electronics being especially stringent. Compared to the Optoma GT1080, the BenQ has better colors; equal or better black levels; less rainbow effect (abbreviated RBE); and better focus uniformity (perfect). Many people are concerned about the rainbow effect, so I am here to say that it is all but non-existent on the BenQ. The Optoma had some rainbowing that wasnt bad by any means, but it did show up without even purposefully looking for it. It didnt bother me much, but having now used the BenQ I feel spoiled. Quite literally the only way I can even observe the RBE is by putting up a high contrast scene like the grid test pattern and darting my eyes across the image. Even then it takes a few passes with my eyes to find it. The black levels are as dark as or darker than my TV (Sony KDL W700B). For empirical comparison the Sony TV has a Black level of about 0.020 cd/m2 (taken from the W800B review on Rtings.com. The W800B is the W700B, just with 3D). This is with my projector being used on a light-green wall. Theoretically a darker wall would improve the black levels and contrast overall. The colors are even better than the Sony TV and much better and more natural than the Optoma (This and the lack of RBE are thanks to the 4X/6X speed, RGBRGB color wheel compared to the Optomas 2X speed, non-RGBRGB color wheel). The final point of comparison in this category would be focus uniformity. Here the BenQ takes the win with no question. The Optoma had fairly blurry corners as well as chromatic aberration (especially the top right corner) when the middle of the screen was used to adjust focus. This resulted in me having to find a happy middle-ground between top-right corner focus and center picture focus. The Ben Q immediately provided perfect focus without any chromatic aberration across the entire ~135 image. In short, the picture quality on this projector is remarkable. **Operating Experience** This section is meant to address the ease of operation, the operational capabilities, and the things that may be easily overlooked by potential projector purchasers. First of all, the BenQ has MANY more options provided in the menus than the Optoma. They both have digital, vertical keystone and the usual gamut of gamma, color, contrast, etc. settings. The Ben Q, however, has many other settings on offer for the person who really wants to tinker with the projector. My personal favorite is the color correction option that adjusts the image based on the color of the surface you are projecting upon. The remote has all of the things that you use frequently/somewhat frequently on it (I will post a picture). Please note that at least one of the buttons (PiP) is a dummy for this model, at least as far as I can tell. The remote also has a red backlight (Woohoo! Backlit remotes just like the old days!). The brightness of this remote is much more usable than the blue backlight on the Optomas remote (the Optomas was positively blinding). The BenQ has a slightly longer requirement for projection distance than the GT1080, but both being short throw in nature, this isnt a huge problem. You can look up the specific values for yourself if you want more detail. The BenQ is also slightly more forgiving than the Optoma when it comes to placement due to its 1.2X zoom capability. This also has a VGA port and a Serial port which the GT1080 does not. **Value** Seeing as this projector just released a few months ago (August 2016) it is at full price, $1000 (~$1060 after Michigan taxes). I am not at all upset with the price I paid considering the quality I received. The Optoma left me a little underwhelmed, it lacked a bit of color and the issues I mentioned earlier bothered me enough to return it after about a week, at which time I decided to purchase the BenQ instead. Now, the Optoma is around $400 cheaper than the BenQ, so yes the BenQ should provide better overall quality. The GT1080 is not a bad projector, I know my words may make it seem like it is, but this is an objective, critical review, there are no participation ribbons being given. For me, even though the Optoma is much cheaper, I think the BenQ has a better value, the higher price point is more than made up for. **Gaming** Ill keep this short and sweet. There is no perceivable input lag. I would say it is equal to or faster than my Sony TV (24.3ms via Rtings W800B review). Remember, INPUT LAG AND RESPONSE TIME ARE NOT THE SAME THING. atleast 70% of the time when I see someone say response time they actually mean input lag. Input lag is what makes your controller seem out of sync with your TV, like when you hit a button on the controller to make your character do something and there is a delay before your character on screen actually executes that command. Most people cant notice anything less than 30-35ms, while some people can notice anything above 10 or 20ms using a controller, although at that point it isnt really a problem even though it can be noticed.. Response time on the other hand has to do with how quickly the pixels on your screen can change color (usually gray to gray or black to white). Response time on any respectable display will be 5ms or less. A slower response time will lead to smearing or blurring on your display. Think of it like in a movie or show where the character takes drugs and everything seems to look really flowy when they move or like they have a trail following them. That is an extreme example, but it gets the point across. This projector uses Digital Light Processing (DLP) to create its image, with DLP any ghosting/blurring is actually impossible from what I have learned through numerous articles. I never see any response time symptoms as I shouldnt. Think of it as posessing a response time of 0ms. **The Little Things** Both the Optoma and BenQ came INCREDIBLY well packaged. The BenQ even more-so. The remote for the BenQ has a satisfying tactile feedback/click to it. Both projectors have built-in speakers should you need them. I havent used them on either one so I cant comment on their abilities, but they are there. If you are buying a decent projector, you should have something better than the built-in speakers to use, hence my avoidance of using them. However, they do have their place. Its really comforting to know that I can bring the projector over to a friends house or outside and, with no further equipment besides a Blu-ray/DVD player, have a movie theater-like experience, especially with the short-throw nature that makes it easier to find a spot to project. **Negatives** If I had to pick out some negatives, it would be that the black level could be better and it could run a bit cooler. It is not plasma level or OLED level blacks, but it is most certainly as good as the high-end LED TVs. The temperature level isnt something that affects my viewing environment in any substantial way, however, being a techie, it bothers me when any piece of technology runs hot. Perhaps this high heat is just inherent of traditional projector lamp technology, but it still bothers me. In all honesty, these are the only things I think could be improved on this projector. Also, at this price point, I dont think you will find anything better. When I update this review later on, I will be sure to include any new or exacerbated issues that I encounter. **Conclusion** If you are deciding between the Optoma GT1080 and the BenQ HT2150ST, get the BenQ. They both are good projectors, but the BenQ is a tier or two above the GT1080 in quality and experience while coming in at a price that is only 1 - 1.5 tiers higher. **Full Disclosure** I purchased both the Optoma GT1080 and the BenQ HT2150ST with my own money. I was not in any way, shape, or form compensated for the review of these projectors. I am just a 22 year old college student with high standards and the desire to give credit where credit is due and call out any downfalls so that they can hopefully be improved upon in the future. Being one of the first reviews for this product, I really hope this is comprehensive enough for anyone looking to purchase this projector. Thanks for reading!