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  1. Home
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  3. Compare

BenQ TH671ST vs TH575

Which Projector Is Better?

    Top
    Main Differences
    Picture Quality
      BrightnessNative ContrastPre-Calibration Color AccuracyPost-Calibration Color AccuracyColor Gamut
    Design
      SizeAdditional Carrying FeaturesPhysical Setup FlexibilityImagingBatteryFan Noise
    Motion
      Judder
    Inputs
      Inputs & ConnectivitySupported ResolutionsVariable Refresh RateInput LagHDR Format SupportAudio Passthrough3D
    Features
      In The BoxSmart Features & SoundScreen Adaptation
    Comments

Products

BenQ TH671ST
BenQ TH575 
early access

Tested using Methodology v0.12

Updated May 29, 2026 05:52 PM

SEE PRICE
BenQ

Tested using Methodology v0.12

Updated Jun 11, 2026 07:32 PM

This review is in Early access

SEE PRICE
BestBuy.com
BenQ TH671ST Picture

Track

BenQ TH575 Picture

Track

Native Resolution
1080p
Projector Type
Short Throw
Light Source
Lamp
Native Resolution
1080p
Projector Type
Standard Throw
Light Source
Lamp
  1. Recommended in 2 articles:
  2. Home Theater
  3. Short-Throw

Our Verdict

BenQ TH671ST

BenQ TH575

Full comparison details regarding individual product score sets can be found in the section below

GIFT THIS COMPARISON

0 

Variants

  • TH671ST (White)
  • TH575 (White)

Review

See BenQ TH671ST Review
See BenQ TH575 Review
6 
0 

Check Price

White
TH671ST
SEE PRICE
BenQ
White
TH575
SEE PRICE
BestBuy.com
White
TH671ST
SEE PRICE
Walmart.com
White
TH575
SEE PRICE
BenQ
White
TH671ST
SEE PRICE
B&H
White
TH575
SEE PRICE
Walmart.com
White
TH671ST
SEARCH
Amazon
White
TH575
SEE PRICE
B&H
White
TH671ST
SEARCH
BestBuy.com
White
TH575
SEE PRICE
Amazon

Main Differences for
Movies

Threshold 

0.10

Movies 
 

0.0
0.0
JOIN NOW  to see main differences

Full Comparison

Picture Quality

Brightness 
 

N/A
N/A

Brightness Measurement Picture  

BenQ TH671ST Brightness Measurement Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Brightness Measurement Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

White Light Output 
 

Lock lm
Lock lm

Color Light Output 
 

Lock lm
Lock lm

Brightness Uniformity 
 

Lock%
Lock%

Screen Brightness 
 

Lock cd/m²
Lock cd/m²

Native Contrast 
 

N/A
N/A

APL Native Contrast  

BenQ TH671ST APL Native Contrast Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 APL Native Contrast Sample

SAMPLE

JOIN NOW

for pictures & test results

0.1% APL Native Contrast 
 

Lock : 1
Lock : 1

0.5% APL Native Contrast 
 

Lock : 1
Lock : 1

1% APL Native Contrast 
 

Lock : 1
Lock : 1

5% APL Native Contrast 
 

Lock : 1
Lock : 1

10% APL Native Contrast 
 

Lock : 1
Lock : 1

15% APL Native Contrast 
 

Lock : 1
Lock : 1

25% APL Native Contrast 
 

Lock : 1
Lock : 1

50% APL Native Contrast 
 

Lock : 1
Lock : 1

Native Full-On/Full-Off Contrast 
 

Lock : 1
Lock : 1

Full-On/Full-Off Contrast 
 

Lock : 1
Lock : 1

Pre-Calibration Color Accuracy 
 

N/A
N/A

Pre White Balance Picture  

BenQ TH671ST Pre White Balance Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Pre White Balance Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Pre Gamma Curve Picture  

BenQ TH671ST Pre Gamma Curve Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Pre Gamma Curve Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Pre Color Picture  

BenQ TH671ST Pre Color Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Pre Color Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

White Balance dE 2000 
 

Lock
Lock

Color dE 2000 
 

Lock
Lock

Gamma 
 

Lock
Lock

Color Temperature 
 

Lock K
Lock K

Picture Mode 
 

Locked
Locked

Color Temp Setting 
 

Locked
Locked

Gamma Setting 
 

Locked
Locked

Post-Calibration Color Accuracy 
 

N/A
N/A

Post White Balance Picture  

BenQ TH671ST Post White Balance Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Post White Balance Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Post Gamma Curve Picture  

BenQ TH671ST Post Gamma Curve Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Post Gamma Curve Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Post Color Picture  

BenQ TH671ST Post Color Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Post Color Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

White Balance dE 2000 
 

Lock
Lock

Color dE 2000 
 

Lock
Lock

Gamma 
 

Lock
Lock

Color Temperature 
 

Lock K
Lock K

White Balance Calibration 
 

Locked
Locked

Color Calibration 
 

Locked
Locked

Picture Mode 
 

Locked
Locked

Color Gamut 
 

N/A
N/A

Gamut Picture - Rec. 709  

BenQ TH671ST Gamut Picture - Rec. 709 Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Gamut Picture - Rec. 709 Sample

SAMPLE

JOIN NOW

for pictures & test results

BT.709 xy 
 

Lock%
Lock%

BT.709 uv 
 

Lock%
Lock%

Gamut Picture - Rec. 2020  

BenQ TH671ST Gamut Picture - Rec. 2020 Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Gamut Picture - Rec. 2020 Sample

SAMPLE

JOIN NOW

for pictures & test results

BT.2020 xy 
 

Lock%
Lock%

BT.2020 uv 
 

Lock%
Lock%
Design

Size 
 

N/A
N/A

Dimension Picture  

BenQ TH671ST Dimension Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Dimension Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Height  

Lock" (Lock cm)
Lock" (Lock cm)

Width  

Lock" (Lock cm)
Lock" (Lock cm)

Depth  

Lock" (Lock cm)
Lock" (Lock cm)

Weight 
 

Lock lbs (Lock kg)
Lock lbs (Lock kg)

Volume 
 

Lock in³ (Lock cm³)
Lock in³ (Lock cm³)

Additional Carrying Features 
 

N/A
N/A

Carrying Picture  

BenQ TH671ST Carrying Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Carrying Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Carrying Case Picture  

BenQ TH671ST Carrying Case Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Carrying Case Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Carrying Handle 
 

Locked
Locked

Lens Protection 
 

Locked
Locked

Carrying Case 
 

Locked
Locked

Physical Setup Flexibility 
 

N/A
N/A

Style Picture  

BenQ TH671ST Style Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Style Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Mounting Holes Picture  

BenQ TH671ST Mounting Holes Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Mounting Holes Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Optical Zoom 
 

Locked
Locked

Projector Type 
 

Locked
Locked

Minimum Throw Ratio 
 

Lock
Lock

Maximum Throw Ratio 
 

Lock
Lock

Horizontal Lens Shift 
 

N/A
N/A

Vertical Lens Shift 
 

N/A
N/A

Body Adjustment 
 

Locked
Locked

Mounting Holes 
 

Locked
Locked

Imaging 
 

Imaging Technology 
 

Locked
Locked

Native Resolution 
 

Locked
Locked

Aspect Ratio 
 

Locked
Locked

Light Source 
 

Locked
Locked

Spectral Power Distribution  

BenQ TH671ST Spectral Power Distribution Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Spectral Power Distribution Sample

SAMPLE

JOIN NOW

for pictures & test results

Battery 
 

N/A
N/A

Battery Life 
 

N/A
N/A

Charge Time 
 

N/A
N/A

Power Source 
 

Locked
Locked

Fan Noise 
 

N/A
N/A

Noise @ Maximum Brightness Video  

BenQ TH671ST Noise @ Maximum Brightness Video Sample

SAMPLE

JOIN NOW

for videos & test results

BenQ TH575 Noise @ Maximum Brightness Video Sample

SAMPLE

JOIN NOW

for videos & test results

Noise @ Maximum Brightness 
 

LockdBA
LockdBA
Motion

Judder 
 

N/A
N/A

Stitch Pictures  

BenQ TH671ST Stitch Pictures Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Stitch Pictures Sample

SAMPLE

JOIN NOW

for pictures & test results

Judder 24p 
 

0.0
0.0

Judder 25p 
 

0.0
0.0

Judder 24p via 60p 
 

0.0
0.0

Judder 25p via 60p 
 

0.0
0.0

Judder 24p via Native Apps 
 

N/A
N/A

Judder 25p via Native Apps 
 

N/A
N/A
Inputs

Inputs & Connectivity 
 

Inputs Picture  

BenQ TH671ST Inputs Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Inputs Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

HDMI 
 

Locked
Locked

HDMI 2.1 Rated Speed 
 

Locked
Locked

USB Data Ports 
 

Lock
Lock

Audio Out 3.5mm  

Locked
Locked

Digital Optical Audio Out  

Locked
Locked

Bluetooth  

Locked
Locked

Wi-Fi  

Locked
Locked

Ethernet Speed  

Locked
Locked

Supported Resolutions 
 

N/A
N/A

4k @ 60Hz 
 

Locked
Locked

4k @ 120Hz 
 

Locked
Locked

1440p @ 60Hz 
 

Locked
Locked

1440p @ 120Hz 
 

Locked
Locked

1080p @ 60Hz 
 

Locked
Locked

1080p @ 60Hz @ 4:4:4 
 

Locked
Locked

1080p @ 120Hz 
 

Locked
Locked

1080p Maximum Refresh Rate 
 

Lock Hz
Lock Hz

Variable Refresh Rate 
 

VRR 
 

Locked
Locked

Input Lag 
 

N/A
N/A

4k @ 60Hz 
 

N/A
N/A

4k @ 60Hz Outside Game Mode 
 

N/A
N/A

4k @ 120Hz 
 

N/A
N/A

1080p @ 60Hz 
 

Lock
Lock

1080p @ 60Hz Outside Game Mode 
 

Lock
Lock

1080p @ 120Hz 
 

N/A
N/A

1080p @ Max Refresh Rate 
 

Lock
Lock

HDR Format Support  

HDR10 
 

Locked
Locked

HDR10+ 
 

Locked
Locked

Dolby Vision 
 

Locked
Locked

HLG 
 

Locked
Locked

Audio Passthrough 
 

ARC/eARC 
 

Locked
Locked

eARC: Dolby Atmos Over Dolby Digital Plus 
 

Locked
Locked

eARC: Dolby Digital Plus 7.1 
 

Locked
Locked

eARC: LPCM 7.1 Over Dolby MAT 
 

Locked
Locked

eARC: Dolby TrueHD 7.1 
 

Locked
Locked

eARC: DTS:X Over DTS-HD MA 
 

Locked
Locked

eARC: DTS-HD Master Audio 7.1 
 

Locked
Locked

eARC: LPCM Channels (Bitstream) 
 

Locked
Locked

ARC: Dolby Digital 5.1 
 

Locked
Locked

ARC: DTS 5.1 
 

Locked
Locked

Optical: Dolby Digital 5.1 
 

Locked
Locked

Optical: DTS 5.1 
 

Locked
Locked

3D  

3D Support 
 

Locked
Locked
Features

In The Box 
 

In The Box Picture  

BenQ TH671ST In The Box Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 In The Box Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Smart Features & Sound 
 

Interface Picture  

BenQ TH671ST Interface Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

BenQ TH575 Interface Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Smart OS 
 

Locked
Locked

Cast Capable 
 

Locked
Locked

Speaker(s)  

Locked
Locked

Remote-Free Operation 
 

Locked
Locked

Screen Adaptation 
 

N/A
N/A

Focus 
 

Locked
Locked

Vertical Keystone 
 

Locked
Locked

Horizontal Keystone 
 

Locked
Locked

Post-Movement Auto-Correction 
 

Locked
Locked

Obstacle Avoidance 
 

Locked
Locked

Auto Screen Fit 
 

Locked
Locked

Check Price

White
TH671ST
SEE PRICE
BenQ
White
TH575
SEE PRICE
BestBuy.com
White
TH671ST
SEE PRICE
Walmart.com
White
TH575
SEE PRICE
BenQ
White
TH671ST
SEE PRICE
B&H
White
TH575
SEE PRICE
Walmart.com
White
TH671ST
SEARCH
Amazon
White
TH575
SEE PRICE
B&H
White
TH671ST
SEARCH
BestBuy.com
White
TH575
SEE PRICE
Amazon
Back to Top

BenQ TH671ST

BenQ TH575

Comments

  1. Comparison
 • Posted 2 hours ago

BenQ TH671ST vs BenQ TH575: Main Discussion

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