BenQ TH671ST 1080p Short Throw Gaming Projector - Bright Low Lag

In this review of the BenQ TH671ST the bottom line is simple: this short-throw projector is built for gamers and living rooms that need a bright, low-latency big-screen experience. It delivers native 1080p resolution with 3000 lumens and a high native contrast ratio, so gameplay and movies look sharp even with some ambient light. The standout reason to buy is the combination of short-throw capability that can produce a 100 in screen from about 5 ft and the ultra-fast low input lag that keeps competitive play feeling responsive.

Key Features

• Native 1080p Resolution: Full HD detail preserves game HUDs and movie detail for a clear, TV-quality picture on large screens.
• 3000 Lumens Brightness: High brightness enables use in rooms with ambient light so the image stays vibrant without full blackout.
• Short Throw Optics: Capable of a 100 in image from roughly 5 ft, making it viable in smaller rooms for a large display.
• Low Input Lag Gaming Mode: Fast response and refresh that matches consoles like Xbox One X and PS4 Pro deliver smooth, blur-free action.
• Long Lamp Life Options: Multiple lamp modes extend use up to 15,000 hours in economy settings, reducing maintenance cost over time.

Who It's For

The TH671ST is ideal for console gamers who want a large, immersive image without dedicating a long room to projection; its short throw makes a 100 in screen practical in many living rooms. It also suits families and casual home theater users who need a bright projector that performs well with some ambient light and offers easy setup and decent onboard sound.

Those who should look elsewhere include buyers who require 4K resolution or HDR color grading for critical video work, or users who need fully integrated multi-room smart features; the TH671ST focuses on bright, low-lag Full HD performance rather than those advanced cinema or smart home extras.

Pros & Cons

Pros

• Bright 3000 lm output keeps images visible in lit rooms and supports large screen sizes.
• Very low input lag and matching refresh behavior make it a strong choice for competitive gaming.
• Short throw projection produces a 100 in image from about 5 ft, saving space in smaller rooms.
• Good contrast and 92% Rec. 709 color accuracy deliver a cinematic look for movies and games.

Cons

• Some customers have reported occasional malfunctioning units, so expect to test and, if needed, contact support under the included warranty.
• Built-in speaker is serviceable but audiophiles will prefer an external sound system for full movie immersion.

Specifications

Resolution	1080p (1920x1080)
Brightness	3000 ANSI lumens
Contrast Ratio	10000:1 (FOFO)
Light Source Life	Normal 4000h, SmartEco 10000h, Lampsave 15000h
Speaker	5W x 1 onboard
Throw Ratio / 100 in	0.69~0.83 (about 5 ft for 100 in)

Our Verdict

The BenQ TH671ST is a practical and well-rounded choice for gamers and living-room home theater users who want a large, bright, and responsive image without a long throw distance. Given its native Full HD clarity, strong brightness, and short-throw convenience, it represents solid value for anyone prioritizing space-saving big-screen gameplay and everyday movie nights.

Frequently Asked Questions

Can this projector produce a 100 in image in a small room?
Yes; the short-throw optics allow roughly a 100 in diagonal image from about 5 ft, making it suitable for many living rooms.

Is the projector suitable for competitive gaming?
Yes; the unit offers ultra-fast low input lag and a refresh rate that matches common console outputs to reduce motion blur and latency.

What kind of warranty and support are included?
The projector ships with an industry-leading 3-year limited parts and labor warranty and US-based customer support for service issues.