BenQ TH671ST 1080p Short Throw Gaming Projector

79%

21%

Image Quality

Gaming Performance

Short-Throw Capability

Brightness & Ambient Light Performance

Fan Noise

Setup & Ease of Use

Build Quality & Design

Audio Quality

Color Accuracy & Calibration

Value for Money

Lamp Longevity

Input & Connectivity

Warranty & Customer Support

Portability

Overview

The BenQ TH671ST 1080p Short Throw Gaming Projector is built for people who want a massive screen without rearranging their entire living space to accommodate it. BenQ has long been a respected name in display technology, and this model sits comfortably in their mid-to-premium range — serious enough for dedicated enthusiasts, but not so specialized that it loses everyday appeal. The core selling point is straightforward: a genuinely large image from a surprisingly compact distance. Add solid brightness for lit-room use, a 3-year warranty that stands out in this category, and a gaming-tuned feature set, and this short-throw projector builds a strong case for itself.

Features & Benefits

Native Full HD resolution paired with 92% Rec. 709 color accuracy means the picture looks rich and true-to-life straight out of the box — not washed out, not oversaturated. At 3000 lumens, this BenQ gaming projector holds up well when the overhead lights stay on, which is a real practical advantage most competing units cannot claim. The short-throw lens puts a 100-inch image just five feet from the wall, making it workable in spaces where a standard projector would simply fail. Gaming mode drops input lag to competitive levels for PS4 Pro and Xbox One X users, while built-in stereo speakers and HDMI connectivity keep the initial setup refreshingly uncomplicated.

Best For

This short-throw projector is a natural fit for console gamers who want big-screen immersion without dedicating a full room to it. Apartment residents and dorm dwellers will appreciate how little physical space the setup demands — five feet for a 100-inch picture is a genuine advantage when every square foot counts. Sports fans and casual movie watchers who refuse to black out their room every time they sit down will find the brightness level practical rather than just a spec on paper. Buyers who value after-sale support and a domestic warranty over finding the absolute lowest price will feel the investment is well-justified here.

User Feedback

Most owners describe the setup experience positively, with a usable image up and running in well under an hour. Low-latency performance earns consistent praise from console players who notice a real difference compared to typical display options. The recurring criticism, however, is fan noise — at higher brightness levels it becomes audible during quiet movie scenes, which some users find distracting. Color accuracy out of the box divides opinions; a manual calibration pass helps noticeably, but not everyone knows to do it. The built-in speakers cover casual use adequately, though most long-term owners eventually add external audio. Lamp replacement cost is worth researching upfront if heavy daily use is the plan.

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Pros

Projects a 100-inch image from just five feet, making large screens viable in small rooms.
Dedicated gaming mode delivers low input lag that console players notice immediately.
3000 lumens holds up well in rooms with ambient lighting — no blackout curtains required.
Native 1080p resolution with strong color accuracy produces a sharp, vivid image out of the box.
The 3-year warranty is among the longest offered in this projector category.
Setup is straightforward enough for first-time projector owners to handle without professional help.
This BenQ gaming projector works comfortably with PS4 Pro and Xbox One X without additional hardware.
Built-in stereo speakers are functional enough to get up and running without buying audio gear immediately.
Compact and light enough to reposition between rooms without a complicated reinstall process.
US-based customer support earns above-average marks from owners who have needed to use it.

Cons

Fan noise becomes noticeably distracting at higher brightness settings, especially during quiet scenes.
Built-in speakers lack bass and volume headroom — most owners eventually buy external audio.
Zoom flexibility is limited, so getting the exact image size you want requires careful physical placement.
Lamp replacement is an ongoing cost that heavy daily users will encounter sooner than expected.
Port selection is modest; connecting multiple devices simultaneously requires an external HDMI switcher.
No wireless or screen-mirroring support built in, which feels like a gap at this price tier.
Color performance improves meaningfully with manual calibration, but default settings leave some quality on the table.
The plastic housing does not feel as premium as the price suggests compared to some rivals.
PC gamers needing refresh rates above 60Hz will quickly run into performance ceilings.
Edge sharpness softens on very large projected images, particularly beyond 120 inches.

Ratings

The BenQ TH671ST 1080p Short Throw Gaming Projector has been evaluated by our AI rating system after processing thousands of verified global buyer reviews, with spam, bot submissions, and incentivized feedback actively filtered out before scoring. The result is a balanced picture that captures what real owners love — and where the frustrations start to surface — across every meaningful performance category. Scores reflect honest consensus, not manufacturer claims.

Image Quality

88%

Owners consistently report that the picture looks sharp and color-rich right away, especially for Full HD content. The 92% Rec. 709 accuracy means skin tones, game environments, and cinematic content all render with genuine fidelity rather than that blown-out look common in cheaper units.

A handful of users note slight softness toward the edges of very large projected images, particularly beyond 120 inches. Out-of-the-box color calibration, while good, still benefits from manual tweaking — something less experienced buyers do not always realize upfront.

Gaming Performance

93%

Low input lag in dedicated gaming mode is the single most praised attribute among console players. PS4 Pro and Xbox One X users specifically note that fast-action games feel responsive in a way that most budget projectors simply cannot replicate at this screen size.

The gaming mode does lock out some picture adjustments, which bothers users who want fine-grained control over image settings mid-session. PC gamers running higher refresh rates also note the unit tops out in ways that more expensive gaming-focused displays handle better.

Short-Throw Capability

91%

The ability to cast a 100-inch image from just five feet away is consistently described as a practical revelation for apartment and dorm setups. Users who previously thought a large-screen projector was off the table due to room size report this as the feature that finally made it work for them.

Zoom flexibility is limited, so placement needs to be fairly precise to hit the screen size you want. Unlike standard projectors, small shifts in placement produce noticeable changes in image size, which makes dialing in the perfect setup slightly more trial-and-error than expected.

Brightness & Ambient Light Performance

86%

At 3000 lumens, this BenQ gaming projector genuinely holds its own in a room with some overhead lighting on — a real differentiator. Sports viewers and daytime casual users specifically appreciate not needing full blackout conditions to get a watchable, vibrant picture.

Brightness at maximum output comes with increased fan activity, which undermines the experience in quieter content. In fully sunlit rooms the image still struggles, so buyers expecting complete daylight performance will be somewhat disappointed.

Fan Noise

61%

39%

At lower brightness settings, the fan operates at a level most users describe as easy to ignore during gaming sessions or action-heavy content. The unit is not uniquely loud by projector standards, and buyers who have owned other projectors tend to find it acceptable.

Crank the brightness up for daytime viewing and the fan noise becomes a recurring complaint — audible enough during quiet dialogue and movie scenes to pull attention. Users sensitive to background noise, or those watching in smaller rooms, flag this as a genuine quality-of-life issue.

Setup & Ease of Use

89%

The majority of first-time projector buyers report getting a usable, well-focused image within 30 to 45 minutes of unboxing. HDMI connectivity keeps the hookup process straightforward for console users, and the short-throw design reduces the cable-management headache of running long HDMI runs across a room.

Keystone correction options feel limited to some users who want precise geometry control on uneven walls or unusual room layouts. The menu system works fine but is not as intuitive as competing brands, and a few buyers mention the manual could be clearer on calibration steps.

Build Quality & Design

79%

21%

The chassis feels solid for its weight class at just under six pounds, and owners who have moved it between rooms or taken it to a friend's place report no durability concerns over extended use. The compact footprint means it fits on a bookshelf or small table without dominating the space.

The plastic housing does not feel premium relative to the price tier, and some users compare the finish unfavorably to competing projectors in the same bracket. A few long-term owners report minor scuff and wear marks appearing earlier than expected given the cost.

Audio Quality

58%

42%

Built-in stereo speakers are genuinely adequate for quick gaming sessions or casual viewing when a full audio setup is not available. For buyers who just want sound without any extra hardware on day one, the speakers do their job without requiring an immediate additional purchase.

Most owners eventually add external speakers or a soundbar — that tells the real story here. Bass is thin, volume headroom is limited, and anyone watching movies or playing immersive titles with spatial audio will find the built-in audio a weak link in an otherwise capable setup.

Color Accuracy & Calibration

82%

18%

Out-of-the-box color performance earns positive marks from users who compare it side by side with older or cheaper projectors. The Rec. 709 coverage means streaming content and Blu-ray films display with colors that look intentional rather than artificially pumped up.

Users who perform a proper calibration unlock noticeably better results, but the gap between default and calibrated settings is wider than ideal at this price point. Buyers without calibration tools or knowledge may not realize they are not getting the best the unit can produce.

Value for Money

74%

26%

For buyers specifically targeting the short-throw gaming use case, the combination of low input lag, solid brightness, and a credible warranty feels like fair value. There are not many competing options that tick the same boxes without climbing significantly higher in price.

Against general-purpose projectors at a similar price, the TH671ST looks less versatile and the cost is harder to justify. Buyers who do not specifically need the short-throw advantage will find more image performance per dollar elsewhere in BenQ's own lineup.

Lamp Longevity

67%

33%

Users running the projector at standard brightness settings report lamp life tracking reasonably close to manufacturer estimates. Casual viewers who use it a few hours per week several years in have not widely reported premature lamp failures.

Replacement lamp costs are high enough that several long-term owners flag it as an important factor to budget for upfront. Heavy daily users — those running it four or more hours a day — report reaching replacement-worthy degradation faster than the rated hours suggest.

Input & Connectivity

77%

23%

HDMI ports cover the needs of the vast majority of users, and switching between a console and a streaming stick is straightforward enough for everyday use. The TH671ST connects without fuss to modern devices, which buyers new to projectors find reassuring.

The port selection is modest — users hoping to connect multiple devices simultaneously without a switcher will find themselves limited. There is no wireless or screen-mirroring support built in, which feels like a gap at this price tier given how common that expectation has become.

Warranty & Customer Support

87%

The 3-year limited warranty is one of the longest in this segment and earns genuine goodwill from buyers who have needed to use it. US-based customer service receives above-average marks in feedback threads for responsiveness and willingness to resolve issues without excessive friction.

A small number of users report inconsistent experiences depending on which support representative handles their case. International buyers outside the US note that warranty terms and service quality vary, which is worth verifying before purchasing from a non-domestic retailer.

Portability

72%

28%

At under six pounds and with a reasonably compact footprint, this short-throw projector is easy enough to move between rooms or pack up for a trip. Users who take it to vacation rentals or use it outdoors on covered patios mention it handles occasional transport without issues.

It is not purpose-built for portability — there is no carrying case included, and the power cable setup is not as travel-friendly as projectors designed specifically for on-the-go use. Buyers looking for a genuinely portable solution may find dedicated portable projectors a better match.

Suitable for:

The BenQ TH671ST 1080p Short Throw Gaming Projector is an excellent match for console gamers living in apartments, dorms, or any space where throwing a 100-inch image from just five feet away solves a problem that a standard projector simply cannot. If you own a PS4 Pro or Xbox One X and have been settling for a mid-sized TV because a large-screen setup felt impractical, this projector changes that calculation without requiring a dedicated room or permanent installation. Sports fans who want a big-screen experience during afternoon games — without blacking out the room — will find the 3000-lumen output genuinely workable in lit conditions. It also suits buyers who want a large display that can pull double duty across gaming, movies, and casual streaming rather than serving just one purpose. The 3-year warranty makes it a particularly sensible investment for anyone who has been burned by short-warranty electronics before and values the peace of mind that comes with US-based customer support.

Not suitable for:

The BenQ TH671ST 1080p Short Throw Gaming Projector is a harder sell for buyers whose primary interest is cinematic movie watching in a properly dark, dedicated home theater — at this price point, fixed-installation projectors designed purely for that environment will outperform it in contrast and shadow detail. Competitive PC gamers chasing high refresh rates above 60Hz will quickly run into the unit's limitations, and for that use case a high-refresh gaming monitor is a more rational choice. Anyone hoping to use this in a fully sunlit room should manage expectations; 3000 lumens handles ambient indoor light well, but direct sunlight exposure is a different challenge entirely. Buyers sensitive to background noise should know the fan becomes audible under higher brightness loads, which can genuinely detract from quiet film scenes. If portability is a priority and you want something that packs into a bag for travel, there are purpose-built portable projectors that serve that scenario far better. Finally, buyers who need robust wireless connectivity or built-in screen mirroring will find the feature set here feeling dated relative to what some competitors now offer at a similar price.

Specifications

Brand: Manufactured by BenQ, a brand with an established track record in display technology including monitors, projectors, and professional visual equipment.
Model Number: The exact model identifier is TH671ST, used for warranty registration, lamp replacement sourcing, and official support requests.
Resolution: Native display resolution is 1920x1080, delivering full HD 1080p output across all connected sources.
Brightness: Rated at 3000 ANSI lumens, which is sufficient for use in rooms with moderate ambient lighting without requiring full blackout conditions.
Color Accuracy: Covers 92% of the Rec. 709 color space, providing accurate and consistent color reproduction for both video content and gaming visuals.
Throw Distance: Short-throw lens design projects a 100-inch image from approximately five feet, with a maximum projected image size of 300 inches.
Input Lag: In dedicated gaming mode, input lag is reduced to ultra-low levels, calibrated to match the output capabilities of PS4 Pro and Xbox One X.
Connectivity: Equipped with HDMI ports for direct connection to consoles, PCs, Blu-ray players, and streaming devices.
Audio: Includes built-in stereo speakers intended for casual use; no external audio hardware is required for basic operation.
Dimensions: The unit measures 11.65 x 4.6 x 9.5 inches, offering a compact footprint suitable for shelf or table placement in smaller rooms.
Weight: Weighs 5.9 pounds, making it light enough for repositioning between rooms or occasional transport without significant effort.
Recommended Use: Designed for indoor use only and is not rated or intended for outdoor or semi-exposed environments.
Warranty: Covered by a 3-year limited warranty on parts and labor, supported by a US-based customer service team.
Compatible Consoles: Officially optimized for PS4 Pro and Xbox One X, with gaming mode tuned to match the refresh rate output of both platforms.
Lamp Type: Uses a replaceable lamp-based light source; lamp life and replacement cost should be factored into total cost of ownership for heavy users.
Aspect Ratio: Supports native 16:9 widescreen aspect ratio, standard for Full HD gaming, streaming, and modern broadcast content.
Keystone Correction: Includes keystone correction for basic image geometry adjustment, though physical placement remains the most reliable method for optimal alignment.
First Available: This model was first made available on Amazon in October 2017 and has not been discontinued by the manufacturer as of the latest product data.

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FAQ

You need roughly five feet between the lens and the projection surface for a 100-inch image. This is the core advantage of the short-throw design — most standard projectors need ten feet or more for the same result, which rules them out entirely for smaller rooms.

The gaming mode was specifically tuned for PS4 Pro and Xbox One X, but it works with newer consoles too — you connect via HDMI just the same. Input lag performance in gaming mode still benefits PS5 and Series X users, though some of the newer consoles' higher-framerate output modes will exceed what the TH671ST can display.

It depends on context. At moderate brightness settings the fan is easy to ignore during gaming or action content. The complaints are most valid at maximum brightness during quiet movie scenes — in that specific scenario, the fan is genuinely noticeable. If you primarily game or watch content with active soundtracks, most people adapt to it quickly.

For casual gaming sessions or background TV use, the built-in stereo speakers are functional. That said, most owners who use this as their primary entertainment display eventually add a soundbar or external speakers — the built-ins lack bass depth and overall volume headroom for an immersive experience.

It is genuinely beginner-friendly. The short-throw design simplifies placement significantly, and HDMI hookup is no different from connecting a console to a TV. Most first-time buyers report having a focused, usable image within 30 to 45 minutes. The trickiest part is fine-tuning the position to land exactly at your target image size.

The warranty covers parts and labor for three years from the date of purchase, which is longer than most competitors offer in this segment. Support is handled by a US-based team, and general feedback on the claims process is positive — though experiences can vary depending on the nature of the issue and which representative handles the case.

It handles ambient indoor light reasonably well at 3000 lumens. Daytime sports viewing in a room with indirect light or partially closed blinds is a realistic use case. Full midday sunlight through open windows is a different challenge — no standard projector at this price handles that well — but this BenQ gaming projector performs better in lit rooms than most similarly priced alternatives.

Lamp life varies based on brightness settings and hours of daily use, but typical estimates range from 3,500 to 5,000 hours depending on the mode. Replacement lamps are available but carry a meaningful cost — worth researching before purchase if you plan on heavy daily use, as lamp replacement is an ongoing expense that factors into long-term value.

Yes, an HDMI-connected streaming stick works without any issues. You plug it into the HDMI port just as you would on a TV, and most sticks power off the projector's USB port or a small adapter. It is a common and convenient setup for users who want Netflix or other streaming services without a separate media player.

It depends entirely on what you need. If you want a 100-inch image in a small room, no TV at this price gets close to that screen size — the projector wins that comparison easily. If you want the most consistent picture quality, lowest maintenance, and best performance in a lit room for everyday use, a large TV has fewer trade-offs. The projector makes the most sense when screen size and spatial constraints are the primary decision drivers.