BenQ TH671ST
#5 in Native 1080pFull review
A bright short throw 1080p projector for gaming in small rooms, for buyers who don’t need 4K or HDR.
Amazon $849$849
The BenQ TH671ST rates 4.1 among native 1080p projectors; the Epson EpiqVision Flex CO-W01 rates 3.3 among under 1080p ones. The Epson EpiqVision Flex CO-W01 costs $519.01 less ($329.99 vs $849).
Epson EpiqVision Flex CO-W01
#7 in Under 1080pFull review
A bright, simple 3LCD projector for rooms with some light, fed by a streaming stick. Its 1280x800 panel is a step below the 1080p CO-FH02, so pay that model’s premium if sharpness matters.
Amazon $329.99$329.99
Prices were last checked October 29, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different type classes (native 1080p and under 1080p), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | BenQ TH671ST | Epson EpiqVision Flex CO-W01 |
|---|---|---|
| Overall rating | 4.1/5 | 3.3/5 |
| Brightness 25% | 95 3,000 ANSI lumens | 95 3,000 ISO 21118 lumens |
| Value 15% | 84 $0.28 per lumen | 100 $0.11 per lumen |
| Resolution 10% | 100 1920 x 1080 native | 30 1280 x 800 native, below 1080p |
| Streaming 15% | 0 no built-in apps; needs a streaming stick | 0 no built-in apps; needs a streaming stick |
| Setup 10% | 50 Auto keystone, 1.2x zoom | 0 Manual focus and keystone |
| Light life 10% | 69 15,000 hour lamp | 50 12,000 hour lamp |
| Gaming 10% | 100 8 ms input lag | 50 input lag not published (neutral score used) |
| Warranty 5% | 100 3-year warranty | 0 1-year warranty |
Specifications
| BenQ TH671ST | Epson EpiqVision Flex CO-W01 | |
|---|---|---|
| Picture | ||
| Brightness | 3,000 ANSI | 3,000 ISO 21118 |
| Native resolution | 1920 x 1080 (1080p) | 1280 x 800 |
| Picture resolution | 1080p | 1280x800 |
| Display | DLP | 3LCD |
| Light source | lamp | lamp |
| Light source life | 15,000 hours | 12,000 hours |
| Color gamut | 92% Rec.709 | - |
| Native contrast | 10,000:1 | - |
| Placement | ||
| Throw | Short throw (0.7:1) | Standard throw (1.3:1) |
| Largest image | 300 in | 300 in |
| Autofocus | No | No |
| Auto keystone | Yes | - |
| Obstacle avoidance | No | - |
| Auto screen fit | No | - |
| Optical zoom | 1.2x | None |
| Streaming and gaming | ||
| Built-in apps | None | None |
| Input lag | 8 ms | - |
| Top refresh rate | 120 Hz | - |
| HDMI ports | 2 | 1 |
| Speakers | 5 W | 5 W |
| Build | ||
| Battery | None | None |
| Fan noise | 33 dB | 38 dB |
| Power | 320 W | 284 W |
| Dimensions | 296 x 224 x 120 mm (W x D x H) | 11.6 x 8.3 x 3.4 in |
| Weight | 6 lb | 5.3 lb |
| Warranty | 3 years | 1 years |
| Released | 2017-11 | 2022-09-27 |