Products
BenQ TH671ST
Epson EpiqVision Flex CO-W01
Tested using Methodology v0.10
Updated Nov 07, 2025 09:55 PM
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Walmart.com
Tested using Methodology v0.10
Updated Oct 02, 2025 04:27 PM
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BestBuy.com
Native Resolution
1080p
Imaging Technology
DLP
Light Source
Lamp
Native Resolution
1280 x 800 (WXGA)
Imaging Technology
LCD
Light Source
Lamp
Our Verdict
BenQ TH671ST
Epson EpiqVision Flex CO-W01
The Epson EpiqVision Flex CO-W01 and BenQ TH671ST excel in different areas, although the BenQ is a bit better overall. The Epson is the far brighter projector as it's meant for use in bright offices with lots of light. Conversely, the BenQ has far superior contrast, making it the better choice to watch movies in a dark room. The BenQ is also a bit more colorful due to its wider color gamut, and it's much more accurate out of the box than the Epson.
Variants
- TH671ST (White)
- EpiqVision Flex CO-W01 (White)
Check Price
White
TH671ST
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Walmart.com
White
EpiqVision Flex CO-W01
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BestBuy.com
White
TH671ST
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B&H
White
EpiqVision Flex CO-W01
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Walmart.com
White
TH671ST
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Amazon.com
White
EpiqVision Flex CO-W01
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Amazon.com
White
TH671ST
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BestBuy.com
White
EpiqVision Flex CO-W01
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B&H
Main Differences for
Movies
Movies
Threshold
Movies
7.1
6.6
Contrast
7.2
4.1
Brightness
6.2
8.8
Pre-Calibration Color Accuracy
8.2
7.2
Color Gamut
7.8
7.0
Full Comparison
Picture Quality
Brightness
6.2
8.8
Brightness Measurement Picture
White Light Output
804 lm
2,233 lm
Color Light Output
852 lm
2,265 lm
Brightness Uniformity
67%
99%
Screen Brightness
92 cd/m²
280 cd/m²
Contrast
7.2
4.1
APL Native Contrast
1% APL Native Contrast
749 : 1
201 : 1
5% APL Native Contrast
539 : 1
181 : 1
10% APL Native Contrast
400 : 1
161 : 1
15% APL Native Contrast
319 : 1
144 : 1
25% APL Native Contrast
225 : 1
119 : 1
50% APL Native Contrast
124 : 1
76 : 1
Pre-Calibration Color Accuracy
8.2
7.2
Pre White Balance Picture
Pre Gamma Curve Picture
Pre Color Picture
White Balance dE
2.32
4.27
Color dE
2.15
2.05
Gamma
2.17
2.11
Color Temperature
6,895 K
6,806 K
Picture Mode
Cinema
sRGB
Color Temp Setting
Normal
6500 K
Gamma Setting
2.2
No Gamma Setting
Post-Calibration Color Accuracy
8.8
9.0
Post White Balance Picture
Post Gamma Curve Picture
Post Color Picture
White Balance dE
1.22
1.62
Color dE
1.92
1.26
Gamma
2.15
2.07
Color Temperature
6,698 K
6,490 K
White Balance Calibration
2 point
2 point
Color Calibration
Yes
No
Picture Mode
Cinema
sRGB
Color Gamut
7.8
7.0
Gamut Picture - Rec. 709
Rec. 709 xy
98.67%
94.68%
Rec. 709 uv
108.67%
93.67%
Gamut Picture - Rec. 2020
Rec. 2020 xy
56.43%
51.23%
Rec. 2020 uv
63.06%
55.46%
Design
Imaging
Style Picture
Imaging Technology
DLP
LCD
Light Source
Lamp
Lamp
Spectral Power Distribution
Optics
Optical Zoom
Manual
No
Focus
Manual Focus
Manual Focus
Keystone
Auto Keystone
Manual Keystone
Aspect Ratio
16 : 9
16 : 10
Minimum Throw Ratio
0.69
1.27
Maximum Throw Ratio
0.83
1.27
Horizontal Lens Shift
N/A
N/A
Vertical Lens Shift
N/A
N/A
Portability
5.0
6.0
Dimension Picture
Height
4.7" (11.9 cm)
3.4" (8.7 cm)
Width
11.7" (29.6 cm)
11.6" (29.4 cm)
Depth
9.1" (23.2 cm)
8.3" (21.0 cm)
Weight
5.9 lbs (2.7 kg)
5.4 lbs (2.4 kg)
Noise
7.2
4.7
Noise @ Maximum Brightness Video
Noise @ Maximum Brightness
52.1dBA
64.0dBA
Inputs
Inputs & Connectivity
Inputs Picture
HDMI
2 (2x HDMI 1.4)
1x (HDMI 1.4)
HDMI 2.1 Rated Speed
No HDMI 2.1
No HDMI 2.1
USB Data Ports
0
1
Audio Out 3.5mm
1
0
Digital Optical Audio Out
0
0
Wi-Fi
No
No
Ethernet Speed
No Ethernet
No Ethernet
Supported Resolutions
3.3
2.5
Native Resolution
1080p
1280 x 800 (WXGA)
4k @ 60Hz
No
No
4k @ 120Hz
No
No
1440p @ 60Hz
Scaled (Forced)
No
1440p @ 120Hz
No
No
1080p @ 60Hz
Yes
Scaled
1080p @ 60Hz @ 4:4:4
Yes
Scaled
1080p @ 120Hz
No
No
1080p Maximum Refresh Rate
60 Hz
60 Hz
Input Lag
7.4
4.4
4k @ 60Hz
N/A
N/A
4k @ 60Hz Outside Game Mode
N/A
N/A
4k @ 120Hz
N/A
N/A
1080p @ 60Hz
17.6
38.9
1080p @ 60Hz Outside Game Mode
50.9
38.9
1080p @ 120Hz
N/A
N/A
1080p @ Max Refresh Rate
17.6
38.9
HDR Format Support
HDR10
Yes
No
HDR10+
No
No
Dolby Vision
No
No
HLG
Yes
No
Audio Passthrough
ARC/eARC
No
No
eARC: Dolby Atmos Over Dolby Digital Plus
No
No
eARC: Dolby Digital Plus 7.1
No
No
eARC: LPCM 7.1 Over Dolby MAT
No
No
eARC: Dolby TrueHD 7.1
No
No
eARC: DTS:X Over DTS-HD MA
No
No
eARC: DTS-HD Master Audio 7.1
No
No
eARC: LPCM Channels (Bitstream)
0
0
ARC: Dolby Digital 5.1
No
No
ARC: DTS 5.1
No
No
Optical: Dolby Digital 5.1
No
No
Optical: DTS 5.1
No
No
3D
3D Support
Yes
No
Features
Smart Features & Sound
Smart OS
No
No
Cast Capable
No
No
Speaker(s)
Yes
Yes
In The Box
In The Box Picture
Check Price
White
TH671ST
SEE PRICE
Walmart.com
White
EpiqVision Flex CO-W01
SEE PRICE
BestBuy.com
White
TH671ST
SEE PRICE
B&H
White
EpiqVision Flex CO-W01
SEE PRICE
Walmart.com
White
TH671ST
SEARCH
Amazon.com
White
EpiqVision Flex CO-W01
SEE PRICE
Amazon.com
White
TH671ST
SEARCH
BestBuy.com
White
EpiqVision Flex CO-W01
SEE PRICE
B&H
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BenQ TH671ST
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Comments
BenQ TH671ST vs Epson EpiqVision Flex CO-W01: Main Discussion
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