BenQ Home Theater Projectors Reviewed: Gaming to 4K

BenQ has built a strong position in the home theater projector market by targeting the gap between entry-level DLP units and flagship territory — the range where a real dedicated setup becomes achievable without a reference-tier budget. The lineup spans 1080p gaming-first builds, 4K lamp-based models, and newer laser options with meaningful spec differences between each. Sorting through them requires looking past lumen numbers at throw ratios, light source longevity, and actual input lag figures at the resolution you care about.

These picks sit within the broader Projectors category and are aimed at buyers building a dedicated or semi-dedicated room setup. The comparisons below draw on spec sheets, Projector Central data, and verified owner consensus from AVS Forum threads — not a showroom demo.

Top Picks

BenQ TH575 1080p Indoor Gaming Projector

The BenQ TH575 is a 1080p DLP projector rated at 3800 lumens with a standard throw ratio and 1.1x optical zoom. Input lag at 1080p/60Hz drops to 16.7ms in Enhanced Game Mode — genuinely usable for console gaming, though not competitive for fast-twitch PC titles. The light source is a lamp, not laser, which matters for long-term ownership: expect 4,000, 6,000 hours in normal mode before a replacement lamp is needed.

The 3800-lumen rating earns its keep in a room that isn’t fully light-controlled. Verified buyers on Amazon consistently note it holds up with ambient light better than competing models at this tier, though color accuracy suffers when you push brightness against a bright wall. A proper screen — ALR if ambient light is a regular factor — closes that gap considerably. The screen matters as much as the projector, and most buyers underestimate how much a basic wall or cheap screen limits a capable unit like this one.

For a 100-inch image, Projector Central’s calculator puts the throw distance at roughly 10, 11 feet, which fits a standard living room or a shorter dedicated room. The TH575 doesn’t have 4K or HDR10+ support — it accepts HDR signals and tone-maps them, but the native panel is 1080p. That’s the honest ceiling, and it’s worth knowing before purchase.

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BenQ TK700 4K Gaming Projector

Native 4K UHD, 3200 lumens, HDMI 2.0 for 4K/60Hz input, and 16ms input lag at full 4K resolution — the BenQ TK700 makes a specific argument: you shouldn’t have to choose between 4K and low latency on a console-focused setup. PS5 and Xbox Series X owners running 4K/60Hz will find the lag figure acceptable for most content. It won’t match a gaming monitor, but it’s not trying to.

The TK700 is also a lamp-based unit. That’s not disqualifying at this tier, but it is a running cost and planning consideration. At normal brightness, manufacturer-rated lamp life comes in around 4,000 hours in Normal mode, more in SmartEco. Owner reports on AVS Forum are broadly consistent with BenQ’s figures, though early lamp-dim behavior shows up at the high end of the brightness setting more than at moderate levels. Keep it at a moderate brightness calibration and the lamp behaves predictably.

HDR10 support is present and functional. The tone mapping won’t satisfy calibration-focused buyers used to working with a Denon receiver and an HTPC source chain, but for disc playback and streaming at 4K, the results read as noticeably better than the 1080p tier. Compared to my Epson 4010 — an LCD 4K-enhanced unit in a different price bracket — the TK700’s DLP 4K panel handles sharp text and high-contrast motion well, with the usual DLP color wheel caveat if you’re sensitive to rainbow artifacts.

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BenQ TK710 4K Laser Projector

The BenQ TK710 is where the BenQ lineup makes its clearest generational step. Laser light source, 3200 lumens, native 4K, 4ms response time, and 240Hz refresh rate for compatible PC inputs. The eARC support via HDMI is a practical addition for anyone routing audio through a receiver — in a 7.1.2 Atmos setup, not having to run a separate audio extraction path saves real cable management complexity.

The lamp-versus-laser distinction deserves a direct statement here: a laser light source is rated at 20,000+ hours to half-brightness, compared to 4,000, 6,000 for a lamp. Over a five-year ownership window, the TK710 avoids one to three lamp replacement cycles. Owner reports consistently flag this as the primary reason they stepped up from the TK700, not the response time or refresh rate improvements (which matter primarily for PC gaming at 1440p+ and 120Hz+ inputs).

Vertical lens shift is included — a feature absent from most BenQ models at this tier, and one that matters significantly during installation. A projector with no lens shift forces ceiling-mount positioning to be exact; a projector with vertical lens shift gives you real flexibility in mount placement. Combined with the 1.3x zoom range and 3D keystone, the TK710 is the most installation-flexible unit in this lineup. For a full comparison of laser options at this price range, the best upper-mid-tier laser projectors guide covers several competing units worth running alongside this one.

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BenQ TK800M 4K UHD Home Theater Projector

The BenQ TK800M is the movie-first entry in BenQ’s 4K lamp-based tier — 3000 lumens, native 4K UHD, HDR10 and HLG support, and 96% Rec. 709 color coverage. That last figure is the relevant spec for anyone whose primary use is film and scripted content. Wide color gamut hits the living room marketing hard, but broadcast and streaming content is still mastered to Rec. 709, and 96% coverage means what you see tracks what the colorist intended.

Owner consensus on Amazon and AVS Forum is that the TK800M performs best in a room with meaningful light control. In a 14x18 ft dedicated room with dark gray walls and blackout curtains — a setup similar to the room used as a reference here — 3000 lumens at a 110-inch image size produces a bright, confident picture on a white gain screen. On an ALR screen, even better. On a bright wall in an open living room, the experience degrades meaningfully. That’s not a TK800M-specific weakness; it’s physics at this lumen tier.

The input lag at 1080p/60Hz is acceptable for casual gaming; it’s not optimized for it the way the TK700 is. The TK800M doesn’t advertise a dedicated game mode with aggressive lag reduction. For buyers building a setup primarily around Blu-ray, 4K streaming, and the occasional family movie night — referencing how a setup like the 7.1.2 Atmos room here gets used most often — the TK800M’s color accuracy and HDR implementation are the better fit. Buyers split between movies and serious gaming should look at the TK700 or TK710 first, and the best mid-tier home theater projectors guide provides useful context on what the broader competition looks like at this tier.

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BenQ TH671ST 1080p Short Throw Gaming Projector (Black)

Short throw ratio, 3000 lumens, 1080p native, and a low-latency game mode — the BenQ TH671ST (Black) solves a specific installation problem. Standard throw projectors need roughly 10 feet of distance for a 100-inch image. The TH671ST produces the same image from roughly 5 feet. That’s the difference between mounting on the back wall of a small room versus the difference between mounting on the back wall and being forced to use a ceiling mount over the seating area.

Verified buyers report consistent results using this unit on a table or low shelf pushed back against a wall, projecting onto a screen or wall surface at close range. Input lag in Game Mode measures around 16ms at 1080p, consistent with BenQ’s published spec. The DLP optics handle the short throw geometry without significant keystone issues when the projector is placed level; the auto vertical keystone corrects minor tilt. Projector Central’s throw calculator confirms the short throw ratio performs as advertised across the published zoom range.

The trade-off is resolution ceiling: 1080p is the native panel, and HDR signals are accepted but tone-mapped rather than natively processed at 4K. For buyers who are building around console gaming in a small room, couch-length throw, or a basement setup where ceiling mounting isn’t practical, the TH671ST’s geometry advantages outweigh the resolution limitation.

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BenQ TH671ST Full HD 1080p Projector (White)

The BenQ TH671ST (White) shares the same optical engine, throw ratio, and input lag spec as the black variant above. Same 3000 lumens, same 1080p native resolution, same short throw geometry. The practical difference between the two is cosmetic: the white chassis blends into lighter ceiling and wall environments where a black unit would read as visually obtrusive.

Owner feedback on both color variants is functionally identical — expected, given the shared internals. Where the white version consistently shows up in buyer comments is in living room or bedroom installs where the projector sits on a shelf or entertainment unit and is visible when not in use. A white unit in that context reads less like equipment. For a dedicated dark room, the choice is irrelevant. For a multi-use space with light walls and furniture, it reads as a considered decision.

If the short throw form factor is the reason you’re here but you’re uncertain whether 1080p is the right resolution ceiling for your setup, the best mid-range home theater projectors guide covers the full field at this price band, including 4K short throw alternatives worth comparing.

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Buying Guide

Throw Distance and Room Geometry

The first decision isn’t which projector — it’s whether your room geometry allows a standard throw unit at all. Standard throw projectors need roughly 1.5x to 2x the screen width in throw distance. For a 100-inch diagonal 16:9 screen (roughly 87 inches wide), that’s 11, 14 feet from lens to screen. Ceiling-mount placement behind the seating area is the common solution in dedicated rooms. In living rooms and bedrooms where that’s not possible, a short throw unit — like either TH671ST variant — becomes the functional answer, not a preference.

Projector Central’s throw distance calculator is the right tool for checking this before purchasing. Enter the lens-to-screen distance you have available, and it returns the image size range for a given model. Use actual measured room dimensions, not estimates.

Lamp vs. Laser Light Source

Every BenQ unit in this lineup except the TK710 uses a lamp light source. Lamp projectors are well-established technology with predictable behavior: brightness is highest when new, dims gradually over hours of use, and the lamp requires replacement after 4,000, 6,000 hours in Normal mode. Replacement lamps for BenQ projectors are available and reasonably priced, but it’s a cost and a maintenance step to plan for.

The TK710’s laser light source changes that calculus. Laser is rated to 20,000+ hours to half-brightness — essentially the projector’s service life rather than a consumable cycle. For high-use setups (nightly family movie use, regular gaming sessions), the laser’s longevity advantage compounds. The broader Projectors hub covers this trade-off in more depth across brands and tiers.

Resolution: 1080p vs. 4K

Native 4K costs more. The question is whether the upgrade is perceptible at your screen size and seating distance. At a 100-inch screen and a 10, 12 foot seating distance, 4K is a visible improvement over 1080p for high-contrast detail in film and text-heavy content. At an 80-inch image from 8 feet, the difference narrows. At the same image size but a 15-foot viewing distance, 1080p becomes harder to distinguish from 4K without a direct comparison.

The 1080p units in this lineup — the TH575 and both TH671ST variants — are not consolation prizes. For buyers on a tighter budget who plan to sit at typical living room distances, verified owner consensus supports 1080p as a genuinely satisfying experience. For buyers planning a dedicated room with a 110-inch-plus screen and seating within 12 feet, native 4K is the stronger argument.

Input Lag and Gaming

BenQ’s marketing heavily emphasizes gaming credentials across most of this lineup. The spec to evaluate is input lag in Game Mode at the resolution and frame rate you actually intend to use. The TK700’s 16ms at 4K/60Hz is strong for a projector. The TH575’s 16.7ms at 1080p/60Hz is comparable. The TK710 drops further to 4ms, which matters for PC gaming at 120Hz+.

What none of these projectors does is replicate the response behavior of a gaming monitor at high frame rates. For single-player story-driven games, any of these figures work without compromise. For competitive online play, the monitor remains the better tool. The question is how you actually use the room — and for most home theater setups built around console play and film, the projector wins on immersion without losing anything measurable in practice.

Color Accuracy and Screen Pairing

The TK800M’s 96% Rec. 709 coverage is the standout spec for movie-focused buyers. Most streaming and Blu-ray content is mastered to Rec. 709; wider gamut coverage doesn’t help unless the content is mastered to it. For buyers who calibrate — using Audyssey for audio, REW for room correction, and similar tools for video — the TK800M’s color spec gives the calibration process a better starting point.

Screen pairing deserves equal attention. A mid-range projector on a quality ALR screen consistently outperforms a better projector on a bare wall or low-gain white screen. Budget accordingly: if the projector is the entire display budget, the result will be limited. If 20, 30% of the display budget goes to the screen, the projector’s actual capability shows. Most buyers get this backwards, and the gap shows up immediately in first impressions.

Frequently Asked Questions

What is the difference between the BenQ TK700 and TK710?

The TK700 uses a lamp light source and offers 16ms input lag at 4K/60Hz, while the TK710 uses a laser light source rated at 20,000+ hours and drops input lag to 4ms with 240Hz support for PC gaming. The TK710 also adds vertical lens shift and eARC support, which the TK700 lacks. For console gaming at 4K/60Hz, both work well — the TK710’s advantages compound over years of use and matter most in PC gaming or installation-sensitive rooms.

Are the two BenQ TH671ST models the same projector?

Yes. The black and white variants of the BenQ TH671ST share identical internals — same 3000-lumen lamp, same 1080p native resolution, same short throw ratio, and same 16ms input lag in Game Mode. The only difference is the chassis color. Choose based on where the projector will live: dark dedicated rooms favor either, while multi-use living spaces with light-colored walls and furniture tend to read the white unit as less visually intrusive.

Is 1080p good enough for a home theater projector, or should I go 4K?

At screen sizes under 100 inches and seating distances beyond 12 feet, verified owner consensus supports 1080p as a satisfying experience that’s difficult to distinguish from 4K without a direct side-by-side comparison. At 110 inches or larger with seating within 10, 12 feet, the detail advantage of native 4K becomes visible in film and high-contrast content. The best entry-tier home theater projectors guide covers the 1080p tier in more depth for buyers where budget is the primary constraint.

How long do BenQ projector lamps last?

BenQ rates most of its lamp-based projectors at 4,000 hours in Normal mode and up to 6,000, 10,000 hours in Eco or SmartEco modes. Owner reports on AVS Forum are broadly consistent with the Eco figures in moderate-use setups. Replacement lamps are available from BenQ directly and through third-party suppliers. The TK710’s laser light source avoids this cycle entirely, rated at 20,000+ hours to half-brightness — more than ten years of nightly use at three hours per night.

Do BenQ home theater projectors need a special screen?

No special screen is required, but screen choice significantly affects the result. In fully light-controlled rooms, a standard white gain screen paired with any of these units produces the intended picture. In rooms with ambient light — living rooms, multi-use spaces — an ALR (Ambient Light Rejecting) screen recovers contrast and color saturation that the lamp or laser can’t overcome on its own. The projector’s lumen rating assumes a screen with at least 1.0 gain; a bare white wall typically reads a half-stop dimmer and flatter in color.