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  1. Home
  2. Monitor
  3. Compare

Dell S2725QS vs KOORUI S2721PM

Which Monitor Is Better?

    Top
    Main Differences
    Design
      StyleBuild QualityErgonomicsStandDisplayControlsIn The Box
    Picture Quality
      ContrastLocal DimmingSDR BrightnessHDR BrightnessGray UniformityBlack UniformityColor Accuracy (Pre-Calibration)Color Accuracy (Post-Calibration)SDR Color GamutHDR Color GamutHDR Color VolumeViewing AngleText ClarityPanel TechnologyDirect ReflectionsAmbient Black Level RaiseTotal Reflected LightGradient
    Motion
      Refresh RateVariable Refresh Rate (VRR)VRR Motion PerformanceRefresh Rate ComplianceCAD @ Max Refresh RateResponse Time @ Max Refresh RateCAD @ 120HzResponse Time @ 120HzCAD @ 60HzResponse Time @ 60HzBacklight Strobing (BFI)VRR FlickerImage Flicker
    Inputs
      Input LagResolutionPS5 CompatibilityXbox Series X|S CompatibilityInputsUSBmacOS Compatibility
    Features
      Additional FeaturesOn-Screen Display (OSD)
    Comments

Products

Dell S2725QS
KOORUI S2721PM 
early access

Tested using Methodology v2.1.2

Updated Mar 23, 2026 06:06 PM

SEE PRICE
Amazon

Tested using Methodology v2.1.2

Updated Aug 11, 2026 08:01 PM

This review is in Early access

SEE PRICE
Amazon
Dell S2725QS Picture

Track

KOORUI S2721PM Picture

Track

Size
27"
Panel Type
LCD
Native Resolution
3840 x 2160
Max Refresh Rate
120 Hz
Sub-Type
IPS
Size
27"
Panel Type
LCD
Native Resolution
2560 x 1440
Max Refresh Rate
200 Hz
Sub-Type
IPS
  1. Recommended in 8 articles:
  2. PS5/PS5 Pro
  3. 4k Gaming
  4. Budget
  5. 5

Our Verdict

Dell S2725QS

KOORUI S2721PM

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

GIFT THIS COMPARISON

0 

Variants

  • S2725QS (27")
  • S2721PM (27")

Review

See Dell S2725QS Review
See KOORUI S2721PM Review
17 
7 

Check Price

27"
S2725QS
SEE PRICE
Amazon
27"
S2721PM
SEE PRICE
Amazon
27"
S2725QS
SEE PRICE
BestBuy.com
27"
S2721PM
SEARCH
B&H
27"
S2725QS
SEE PRICE
Dell
27"
S2721PM
SEARCH
BestBuy.com
27"
S2725QS
SEE PRICE
Walmart.com
27"
S2721PM
SEARCH
Walmart.com
27"
S2725QS
SEARCH
B&H
 

Main Differences for
PC Gaming

Threshold 

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PC Gaming 
 

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Full Comparison

Design

Style 
 

Design Picture  

Dell S2725QS Design Picture Sample

SAMPLE

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KOORUI S2721PM Design Picture Sample

SAMPLE

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Curved 
 

Locked
Locked

Curve Radius 
 

Locked
Locked

Build Quality 
 

N/A
N/A

Build Quality Picture  

Dell S2725QS Build Quality Picture Sample

SAMPLE

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KOORUI S2721PM Build Quality Picture Sample

SAMPLE

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Ergonomics 
 

N/A
N/A

Ergonomics Picture  

Dell S2725QS Ergonomics Picture Sample

SAMPLE

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KOORUI S2721PM Ergonomics Picture Sample

SAMPLE

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Back Picture  

Dell S2725QS Back Picture Sample

SAMPLE

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KOORUI S2721PM Back Picture Sample

SAMPLE

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Height Adjustment 
 

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

Min Height To Top Of Panel 
 

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

Tilt Range 
 

Locked
Locked

Rotate Portrait/Landscape 
 

Locked
Locked

Swivel Range 
 

Locked
Locked

Wall Mount 
 

Locked
Locked

Stand 
 

Stand Picture  

Dell S2725QS Stand Picture Sample

SAMPLE

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KOORUI S2721PM Stand Picture Sample

SAMPLE

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Thickness Picture  

Dell S2725QS Thickness Picture Sample

SAMPLE

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KOORUI S2721PM Thickness Picture Sample

SAMPLE

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Base Width 
 

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

Base Depth 
 

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

Thickness (With Display) 
 

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

Weight (With Display) 
 

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

Display 
 

Display Picture  

Dell S2725QS Display Picture Sample

SAMPLE

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KOORUI S2721PM Display Picture Sample

SAMPLE

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for pictures & test results

Size 
 

Lock"
Lock"

Housing Width 
 

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

Housing Height 
 

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

Thickness (Without Stand) 
 

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

Weight (Without Stand) 
 

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

Borders Size (Bezels)  
 

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

Controls 
 

Controls Picture  

Dell S2725QS Controls Picture Sample

SAMPLE

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KOORUI S2721PM Controls Picture Sample

SAMPLE

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In The Box 
 

In The Box Picture  

Dell S2725QS In The Box Picture Sample

SAMPLE

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KOORUI S2721PM In The Box Picture Sample

SAMPLE

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Power Supply 
 

Locked
Locked
Picture Quality

Contrast 
 

N/A
N/A

Checkerboard Picture  

Dell S2725QS Checkerboard Picture Sample

SAMPLE

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KOORUI S2721PM Checkerboard Picture Sample

SAMPLE

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Native Contrast 
 

Lock : 1
Lock : 1

Contrast With Local Dimming 
 

N/A
Lock : 1

Local Dimming 
 

N/A
N/A

Local Dimming Video  

Dell S2725QS Local Dimming Video Sample

SAMPLE

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KOORUI S2721PM Local Dimming Video Sample

SAMPLE

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Local Dimming 
 

Locked
Locked

Backlight 
 

Locked
Locked

SDR Brightness 
 

N/A
N/A

Real Scene 
 

Lock cd/m²
Lock cd/m²

Peak 2% Window 
 

Lock cd/m²
Lock cd/m²

Peak 10% Window 
 

Lock cd/m²
Lock cd/m²

Peak 25% Window 
 

Lock cd/m²
Lock cd/m²

Peak 50% Window 
 

Lock cd/m²
Lock cd/m²

Peak 100% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 2% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 10% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 25% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 50% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 100% Window 
 

Lock cd/m²
Lock cd/m²

Automatic Brightness Limiting (ABL) 
 

Lock
Lock

Minimum Brightness 
 

Lock cd/m²
Lock cd/m²

HDR Brightness 
 

N/A
N/A

EOTF  

Dell S2725QS EOTF Sample

SAMPLE

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KOORUI S2721PM EOTF Sample

SAMPLE

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VESA DisplayHDR Certification 
 

Locked
Locked

Real Scene 
 

Lock cd/m²
Lock cd/m²

Peak 2% Window 
 

Lock cd/m²
Lock cd/m²

Peak 10% Window 
 

Lock cd/m²
Lock cd/m²

Peak 25% Window 
 

Lock cd/m²
Lock cd/m²

Peak 50% Window 
 

Lock cd/m²
Lock cd/m²

Peak 100% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 2% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 10% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 25% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 50% Window 
 

Lock cd/m²
Lock cd/m²

Sustained 100% Window 
 

Lock cd/m²
Lock cd/m²

Automatic Brightness Limiting (ABL) 
 

Lock
Lock

Gray Uniformity 
 

N/A
N/A

50% Uniformity Picture  

Dell S2725QS 50% Uniformity Picture Sample

SAMPLE

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KOORUI S2721PM 50% Uniformity Picture Sample

SAMPLE

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50% Std. Dev. 
 

Lock%
Lock%

50% DSE 
 

Lock%
Lock%

Black Uniformity 
 

N/A
N/A

Native Black Uniformity Picture  

Dell S2725QS Native Black Uniformity Picture Sample

SAMPLE

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KOORUI S2721PM Native Black Uniformity Picture Sample

SAMPLE

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Native Std. Dev. 
 

Lock%
Lock%

Black Uniformity Picture With Local Dimming  

Dell S2725QS Black Uniformity Picture With Local Dimming Sample

SAMPLE

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KOORUI S2721PM Black Uniformity Picture With Local Dimming Sample

SAMPLE

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Std. Dev. w/ L.D. 
 

N/A
Lock%

Color Accuracy (Pre-Calibration) 
 

N/A
N/A

Pre Calibration Picture  

Dell S2725QS Pre Calibration Picture Sample

SAMPLE

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KOORUI S2721PM Pre Calibration Picture Sample

SAMPLE

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Pre Gamma Curve Picture  

Dell S2725QS Pre Gamma Curve Picture Sample

SAMPLE

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KOORUI S2721PM Pre Gamma Curve Picture Sample

SAMPLE

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Pre Color Picture  

Dell S2725QS Pre Color Picture Sample

SAMPLE

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KOORUI S2721PM Pre Color Picture Sample

SAMPLE

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Picture Mode 
 

Locked
Locked

sRGB Gamut Area xy 
 

Lock%
Lock%

White Balance dE (Avg.) 
 

Lock
Lock

Color Temperature (Avg.) 
 

Lock K
Lock K

Gamma (Avg.) 
 

Lock
Lock

Color dE (Avg.) 
 

Lock
Lock

Contrast Setting 
 

Lock
Lock

RGB Settings 
 

Locked
Locked

Gamma Setting 
 

Locked
Locked

Brightness Setting 
 

Lock
Lock

Measured Brightness 
 

Lock cd/m²
Lock cd/m²

Brightness Locked 
 

Locked
Locked

Color Accuracy (Post-Calibration) 
 

N/A
N/A

Post Calibration Picture  

Dell S2725QS Post Calibration Picture Sample

SAMPLE

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KOORUI S2721PM Post Calibration Picture Sample

SAMPLE

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Post Gamma Curve Picture  

Dell S2725QS Post Gamma Curve Picture Sample

SAMPLE

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KOORUI S2721PM Post Gamma Curve Picture Sample

SAMPLE

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Post Color Picture  

Dell S2725QS Post Color Picture Sample

SAMPLE

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KOORUI S2721PM Post Color Picture Sample

SAMPLE

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Picture Mode 
 

Locked
Locked

sRGB Gamut Area xy 
 

Lock%
Lock%

White Balance dE (Avg.) 
 

Lock
Lock

Color Temperature (Avg.) 
 

Lock K
Lock K

Gamma (Avg.) 
 

Lock
Lock

Color dE (Avg.) 
 

Lock
Lock

Contrast Setting 
 

Lock
Lock

RGB Settings 
 

Locked
Locked

Gamma Setting 
 

Locked
Locked

Brightness Setting 
 

Lock
Lock

Measured Brightness 
 

Lock cd/m²
Lock cd/m²

ICC Profile 
 

Download
Download

SDR Color Gamut 
 

N/A
N/A

sRGB Color Gamut Picture  

Dell S2725QS sRGB Color Gamut Picture Sample

SAMPLE

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KOORUI S2721PM sRGB Color Gamut Picture Sample

SAMPLE

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sRGB Coverage xy 
 

Lock%
Lock%

sRGB Picture Mode 
 

Locked
Locked

Adobe RGB Color Gamut Picture  

Dell S2725QS Adobe RGB Color Gamut Picture Sample

SAMPLE

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KOORUI S2721PM Adobe RGB Color Gamut Picture Sample

SAMPLE

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Adobe RGB Coverage xy 
 

Lock%
Lock%

Adobe RGB Picture Mode 
 

Locked
Locked

HDR Color Gamut 
 

N/A
N/A

Wide Color Gamut 
 

Locked
Locked

DCI-P3 Color Gamut Picture  

Dell S2725QS DCI-P3 Color Gamut Picture Sample

SAMPLE

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KOORUI S2721PM DCI-P3 Color Gamut Picture Sample

SAMPLE

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DCI-P3 Coverage xy 
 

Lock%
Lock%

DCI-P3 Picture Mode 
 

Locked
Locked

Rec. 2020 Color Gamut Picture  

Dell S2725QS Rec. 2020 Color Gamut Picture Sample

SAMPLE

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KOORUI S2721PM Rec. 2020 Color Gamut Picture Sample

SAMPLE

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Rec. 2020 Coverage xy 
 

Lock%
Lock%

Rec. 2020 Picture Mode 
 

Locked
Locked

HDR Color Volume 
 

N/A
N/A

DCI-P3 Color Volume ITP Picture  

Dell S2725QS DCI-P3 Color Volume ITP Picture Sample

SAMPLE

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KOORUI S2721PM DCI-P3 Color Volume ITP Picture Sample

SAMPLE

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1,000 cd/m² DCI-P3 Coverage ICtCp 
 

Lock%
Lock%

DCI-P3 Picture Mode 
 

Locked
Locked

Rec. 2020 Color Volume ITP Picture  

Dell S2725QS Rec. 2020 Color Volume ITP Picture Sample

SAMPLE

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KOORUI S2721PM Rec. 2020 Color Volume ITP Picture Sample

SAMPLE

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10,000 cd/m² Rec. 2020 Coverage ICtCp 
 

Lock%
Lock%

Rec. 2020 Picture Mode 
 

Locked
Locked

Viewing Angle 
 

N/A
N/A

Viewing Angle Video  

Dell S2725QS Viewing Angle Video Sample

SAMPLE

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KOORUI S2721PM Viewing Angle Video Sample

SAMPLE

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for videos & test results

Chroma Graph  

Dell S2725QS Chroma Graph Sample

SAMPLE

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KOORUI S2721PM Chroma Graph Sample

SAMPLE

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Color Washout From Left 
 

Lock°
Lock°

Color Washout From Right 
 

Lock°
Lock°

Hue Graph  

Dell S2725QS Hue Graph Sample

SAMPLE

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KOORUI S2721PM Hue Graph Sample

SAMPLE

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Color Shift From Left 
 

Lock°
Lock°

Color Shift From Right 
 

Lock°
Lock°

Lightness Graph  

Dell S2725QS Lightness Graph Sample

SAMPLE

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KOORUI S2721PM Lightness Graph Sample

SAMPLE

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Brightness Loss From Left 
 

Lock°
Lock°

Brightness Loss From Right 
 

Lock°
Lock°

Black Level Raise From Left 
 

Lock°
Lock°

Black Level Raise From Right 
 

Lock°
Lock°

Gamma Shift From Left 
 

Lock°
Lock°

Gamma Shift From Right 
 

Lock°
Lock°

Text Clarity 
 

N/A
N/A

ClearType On  

Dell S2725QS ClearType On Sample

SAMPLE

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KOORUI S2721PM ClearType On Sample

SAMPLE

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ClearType Off  

Dell S2725QS ClearType Off Sample

SAMPLE

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KOORUI S2721PM ClearType Off Sample

SAMPLE

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Panel Technology 
 

Spectral Power Distribution  

Dell S2725QS Spectral Power Distribution Sample

SAMPLE

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KOORUI S2721PM Spectral Power Distribution Sample

SAMPLE

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Pixels  

Dell S2725QS Pixels Sample

SAMPLE

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KOORUI S2721PM Pixels Sample

SAMPLE

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Panel Type 
 

Locked
Locked

Sub-Type 
 

Locked
Locked

Subpixel Layout 
 

Locked
Locked

Direct Reflections 
 

N/A
N/A

Ring Light Picture  

Dell S2725QS Ring Light Picture Sample

SAMPLE

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KOORUI S2721PM Ring Light Picture Sample

SAMPLE

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Direct Reflections Graph  

Dell S2725QS Direct Reflections Graph Sample

SAMPLE

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KOORUI S2721PM Direct Reflections Graph Sample

SAMPLE

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Peak Direct Reflection Intensity 
 

Lock%
Lock%

Screen Finish 
 

Locked
Locked

Ambient Black Level Raise 
 

N/A
N/A

Black Level Raise Picture  

Dell S2725QS Black Level Raise Picture Sample

SAMPLE

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KOORUI S2721PM Black Level Raise Picture Sample

SAMPLE

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Ambient Black Level Raise Graph  

Dell S2725QS Ambient Black Level Raise Graph Sample

SAMPLE

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KOORUI S2721PM Ambient Black Level Raise Graph Sample

SAMPLE

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Black Luminance @ 0 lx 
 

Lock cd/m²
Lock cd/m²

Black Luminance @ 1000 lx 
 

Lock cd/m²
Lock cd/m²

Total Reflected Light 
 

N/A
N/A

Bright Room Off Picture  

Dell S2725QS Bright Room Off Picture Sample

SAMPLE

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KOORUI S2721PM Bright Room Off Picture Sample

SAMPLE

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Total Reflection Ring Light Picture  

Dell S2725QS Total Reflection Ring Light Picture Sample

SAMPLE

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KOORUI S2721PM Total Reflection Ring Light Picture Sample

SAMPLE

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Total Reflected Light Intensity 
 

Lock% ⋅ pixel
Lock% ⋅ pixel

Diffraction Artifacts 
 

Locked
Locked

Gradient 
 

N/A
N/A

Gradient Picture  

Dell S2725QS Gradient Picture Sample

SAMPLE

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KOORUI S2721PM Gradient Picture Sample

SAMPLE

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Color Depth 
 

Lock Bit
Lock Bit
Motion

Refresh Rate 
 

N/A
N/A

Dual Mode Setting 
 

Locked
Locked

Native Refresh Rate 
 

Lock Hz
Lock Hz

Max Refresh Rate 
 

Lock Hz
Lock Hz

Max Refresh Rate Over DP 
 

Lock Hz
Lock Hz

Max Refresh Rate Over HDMI 
 

Lock Hz
Lock Hz

Max Refresh Rate Over DP @ 10-bit 
 

Lock Hz
Lock Hz

Max Refresh Rate Over HDMI @ 10-Bit 
 

Lock Hz
Lock Hz

DSC Toggle 
 

Locked
Locked

DSC Off Max Refresh Rate Over DP 
 

N/A
N/A

DSC Off Max Refresh Rate Over HDMI 
 

N/A
N/A

Variable Refresh Rate (VRR) 
 

Variable Refresh Rate 
 

Locked
Locked

FreeSync 
 

Locked
Locked

G-SYNC 
 

Locked
Locked

VRR Maximum 
 

Lock Hz
Lock Hz

VRR Minimum 
 

Locked
Locked

VRR Supported Connectors 
 

Locked
Locked

VRR Motion Performance 
 

N/A
N/A

Pursuit Photo VRR  

Dell S2725QS Pursuit Photo VRR Sample

SAMPLE

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KOORUI S2721PM Pursuit Photo VRR Sample

SAMPLE

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OD Mode CAD Comparison  

Dell S2725QS OD Mode CAD Comparison Sample

SAMPLE

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KOORUI S2721PM OD Mode CAD Comparison Sample

SAMPLE

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Recommended VRR OD Setting 
 

Locked
Locked

Variable Overdrive Advertised 
 

Locked
Locked

Avg. CAD 
 

Lock
Lock

Best CAD 
 

Lock
Lock

Worst CAD 
 

Lock
Lock

Refresh Rate Compliance 
 

N/A
N/A

Fast GTG Sequence  

Dell S2725QS Fast GTG Sequence Sample

SAMPLE

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KOORUI S2721PM Fast GTG Sequence Sample

SAMPLE

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VRR Compliance  

Dell S2725QS VRR Compliance Sample

SAMPLE

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KOORUI S2721PM VRR Compliance Sample

SAMPLE

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Compliance @ Max Hz 
 

Lock%
Lock%

Compliance @ 120 FPS 
 

Lock%
Lock%

Compliance @ 60 FPS 
 

Lock%
Lock%

CAD @ Max Refresh Rate 
 

N/A
N/A

Pursuit Photo At Max Refresh  

Dell S2725QS Pursuit Photo At Max Refresh Sample

SAMPLE

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KOORUI S2721PM Pursuit Photo At Max Refresh Sample

SAMPLE

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CAD Heatmap At Max Refresh  

Dell S2725QS CAD Heatmap At Max Refresh Sample

SAMPLE

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KOORUI S2721PM CAD Heatmap At Max Refresh Sample

SAMPLE

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OD Transition Max Refresh Rate 
 

Join nowfor multiple image controls
Join nowfor multiple image controls

Recommended Overdrive Setting 
 

Locked
Locked

Avg. CAD 
 

Lock
Lock

Best 10% CAD 
 

Lock
Lock

Worst 10% CAD 
 

Lock
Lock

Response Time @ Max Refresh Rate 
 

First Response Time 
 

Lock ms
Lock ms

Total Response Time 
 

Lock ms
Lock ms

Recommended Overdrive Setting 
 

Locked
Locked

RGB Overshoot 
 

Lock RGB
Lock RGB

Worst 10% RGB Overshoot 
 

Lock RGB
Lock RGB

Worst 10% First Response Time 
 

Lock ms
Lock ms

Worst 10% Total Response Time 
 

Lock ms
Lock ms

Heatmap First Response  

Dell S2725QS Heatmap First Response Sample

SAMPLE

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KOORUI S2721PM Heatmap First Response Sample

SAMPLE

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Heatmap Total Response  

Dell S2725QS Heatmap Total Response Sample

SAMPLE

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KOORUI S2721PM Heatmap Total Response Sample

SAMPLE

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Heatmap RGB Overshoot  

Dell S2725QS Heatmap RGB Overshoot Sample

SAMPLE

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KOORUI S2721PM Heatmap RGB Overshoot Sample

SAMPLE

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CAD @ 120Hz 
 

N/A
N/A

Pursuit Photo 120Hz  

Dell S2725QS Pursuit Photo 120Hz Sample

SAMPLE

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KOORUI S2721PM Pursuit Photo 120Hz Sample

SAMPLE

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CAD Heatmap 120Hz  

Dell S2725QS CAD Heatmap 120Hz Sample

SAMPLE

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KOORUI S2721PM CAD Heatmap 120Hz Sample

SAMPLE

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for pictures & test results

OD Transition 120Hz 
 

Join nowfor multiple image controls
Join nowfor multiple image controls

Recommended Overdrive Setting 
 

Locked
Locked

Avg. CAD 
 

Lock
Lock

Best 10% CAD 
 

Lock
Lock

Worst 10% CAD 
 

Lock
Lock

Response Time @ 120Hz 
 

Worst 10% First Response Time 
 

Lock ms
Lock ms

RGB Overshoot 
 

Lock RGB
Lock RGB

Total Response Time 
 

Lock ms
Lock ms

First Response Time 
 

Lock ms
Lock ms

Recommended Overdrive Setting 
 

Locked
Locked

Worst 10% Total Response Time 
 

Lock ms
Lock ms

Worst 10% RGB Overshoot 
 

Lock RGB
Lock RGB

120Hz First Response Heatmap  

Dell S2725QS 120Hz First Response Heatmap Sample

SAMPLE

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KOORUI S2721PM 120Hz First Response Heatmap Sample

SAMPLE

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120Hz Total Response Heatmap  

Dell S2725QS 120Hz Total Response Heatmap Sample

SAMPLE

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KOORUI S2721PM 120Hz Total Response Heatmap Sample

SAMPLE

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120Hz Heatmap RGB Overshoot  

Dell S2725QS 120Hz Heatmap RGB Overshoot Sample

SAMPLE

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KOORUI S2721PM 120Hz Heatmap RGB Overshoot Sample

SAMPLE

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CAD @ 60Hz 
 

N/A
N/A

Pursuit Photo 60Hz  

Dell S2725QS Pursuit Photo 60Hz Sample

SAMPLE

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KOORUI S2721PM Pursuit Photo 60Hz Sample

SAMPLE

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CAD Heatmap 60Hz  

Dell S2725QS CAD Heatmap 60Hz Sample

SAMPLE

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KOORUI S2721PM CAD Heatmap 60Hz Sample

SAMPLE

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OD Transition 60Hz 
 

Join nowfor multiple image controls
Join nowfor multiple image controls

Recommended Overdrive Setting 
 

Locked
Locked

Avg. CAD 
 

Lock
Lock

Best 10% CAD 
 

Lock
Lock

Worst 10% CAD 
 

Lock
Lock

Response Time @ 60Hz 
 

Recommended Overdrive Setting 
 

Locked
Locked

First Response Time 
 

Lock ms
Lock ms

Total Response Time 
 

Lock ms
Lock ms

RGB Overshoot 
 

Lock RGB
Lock RGB

Worst 10% Total Response Time 
 

Lock ms
Lock ms

Worst 10% First Response Time 
 

Lock ms
Lock ms

Worst 10% RGB Overshoot 
 

Lock RGB
Lock RGB

60Hz First Response Heatmap  

Dell S2725QS 60Hz First Response Heatmap Sample

SAMPLE

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KOORUI S2721PM 60Hz First Response Heatmap Sample

SAMPLE

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60Hz Total Response Heatmap  

Dell S2725QS 60Hz Total Response Heatmap Sample

SAMPLE

Join Now

for pictures & test results

KOORUI S2721PM 60Hz Total Response Heatmap Sample

SAMPLE

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for pictures & test results

60Hz RGB Overshoot Heatmap  

Dell S2725QS 60Hz RGB Overshoot Heatmap Sample

SAMPLE

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KOORUI S2721PM 60Hz RGB Overshoot Heatmap Sample

SAMPLE

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Backlight Strobing (BFI) 
 

Backlight Strobing Picture  

Dell S2725QS Backlight Strobing Picture Sample

SAMPLE

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KOORUI S2721PM Backlight Strobing Picture Sample

SAMPLE

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Backlight Strobing Frequency Picture  

Dell S2725QS Backlight Strobing Frequency Picture Sample

SAMPLE

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KOORUI S2721PM Backlight Strobing Frequency Picture Sample

SAMPLE

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Backlight Strobing (BFI) 
 

Locked
Locked

Maximum Frequency 
 

N/A
Lock Hz

Minimum Frequency 
 

N/A
Lock Hz

Longest Pulse Width Brightness 
 

N/A
Lock cd/m²

Shortest Pulse Width Brightness 
 

N/A
Lock cd/m²

Pulse Width Control 
 

Locked
Locked

Pulse Phase Control 
 

Locked
Locked

Pulse Amplitude Control 
 

Locked
Locked

VRR At The Same Time 
 

Locked
Locked

VRR Flicker 
 

N/A
N/A

VRR Flicker Video  

Dell S2725QS VRR Flicker Video Sample

SAMPLE

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KOORUI S2721PM VRR Flicker Video Sample

SAMPLE

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VRR Flicker Graph  

Dell S2725QS VRR Flicker Graph Sample

SAMPLE

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KOORUI S2721PM VRR Flicker Graph Sample

SAMPLE

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Dark Gray Flicker 
 

Lock RGB
Lock RGB

Middle Gray Flicker 
 

Lock RGB
Lock RGB

Light Gray Flicker 
 

Lock RGB
Lock RGB

VRR Flicker Control Setting 
 

Locked
Locked

Image Flicker 
 

N/A
N/A

Backlight Picture  

Dell S2725QS Backlight Picture Sample

SAMPLE

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KOORUI S2721PM Backlight Picture Sample

SAMPLE

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Flicker-Free 
 

Locked
Locked

PWM Dimming Frequency 
 

Locked
Locked
Inputs

Input Lag 
 

N/A
N/A

Native Resolution @ Max Hz 
 

Lock ms
Lock ms

Native Resolution @ 120Hz 
 

Lock ms
Lock ms

Native Resolution @ 60Hz 
 

Lock ms
Lock ms

Backlight Strobing (BFI) 
 

N/A
Lock ms

Resolution 
 

N/A
N/A

Native Resolution 
 

Locked
Locked

Aspect Ratio 
 

Locked
Locked

Megapixels 
 

Lock MP
Lock MP

Pixel Density 
 

Lock PPI
Lock PPI

PS5 Compatibility 
 

N/A
N/A

PS5 Compatibility Photo  

Dell S2725QS PS5 Compatibility Photo Sample

SAMPLE

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KOORUI S2721PM PS5 Compatibility Photo Sample

SAMPLE

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PS5 Compatibility Table  

Dell S2725QS PS5 Compatibility Table Sample

SAMPLE

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KOORUI S2721PM PS5 Compatibility Table Sample

SAMPLE

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4k @ 120Hz 
 

Locked
Locked

4k @ 60Hz 
 

Locked
Locked

1440p @ 120Hz 
 

Locked
Locked

1440p @ 60Hz 
 

Locked
Locked

1080p @ 120Hz 
 

Locked
Locked

1080p @ 60Hz 
 

Locked
Locked

Xbox Series X|S Compatibility 
 

N/A
N/A

XSX Compatibility Photo  

Dell S2725QS XSX Compatibility Photo Sample

SAMPLE

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KOORUI S2721PM XSX Compatibility Photo Sample

SAMPLE

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XSX Compatibility Table  

Dell S2725QS XSX Compatibility Table Sample

SAMPLE

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KOORUI S2721PM XSX Compatibility Table Sample

SAMPLE

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4k @ 120Hz 
 

Locked
Locked

4k @ 60Hz 
 

Locked
Locked

1440p @ 120Hz 
 

Locked
Locked

1440p @ 60Hz 
 

Locked
Locked

1080p @ 120Hz 
 

Locked
Locked

1080p @ 60Hz 
 

Locked
Locked

Inputs 
 

Inputs 1  

Dell S2725QS Inputs 1 Sample

SAMPLE

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KOORUI S2721PM Inputs 1 Sample

SAMPLE

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Inputs 2  

Dell S2725QS Inputs 2 Sample

SAMPLE

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KOORUI S2721PM Inputs 2 Sample

SAMPLE

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DisplayPort 
 

Locked
Locked

DisplayPort Transmission Bandwidth 
 

Locked
Locked

Mini DisplayPort 
 

Locked
Locked

HDMI 
 

Locked
Locked

HDMI 2.1 Bandwidth 
 

Locked
Locked

Daisy Chaining 
 

Locked
Locked

3.5mm Audio Out 
 

Locked
Locked

Ethernet 
 

Locked
Locked

HDR10 
 

Locked
Locked

Dolby Vision 
 

Locked
Locked

USB 
 

USB-A Ports 
 

Locked
Locked

USB-A Rated Speed 
 

Locked
Locked

USB-B Upstream Port 
 

Locked
Locked

USB-C Ports 
 

Locked
Locked

USB-C Upstream 
 

Locked
Locked

USB-C Rated Speed 
 

Locked
Locked

USB-C Power Delivery 
 

Locked
Locked

USB-C DisplayPort Alt Mode 
 

Locked
Locked

Thunderbolt 
 

Locked
Locked

macOS Compatibility 
 

macOS Screenshot  

Dell S2725QS macOS Screenshot Sample

SAMPLE

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KOORUI S2721PM macOS Screenshot Sample

SAMPLE

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Features

Additional Features 
 

Speakers 
 

Locked
Locked

RGB Illumination 
 

Locked
Locked

Multiple Input Display 
 

Locked
Locked

KVM Switch 
 

Locked
Locked

Smart OS 
 

Locked
Locked

On-Screen Display (OSD) 
 

OSD Picture  

Dell S2725QS OSD Picture Sample

SAMPLE

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KOORUI S2721PM OSD Picture Sample

SAMPLE

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for pictures & test results

Check Price

27"
S2725QS
SEE PRICE
Amazon
27"
S2721PM
SEE PRICE
Amazon
27"
S2725QS
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BestBuy.com
27"
S2721PM
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B&H
27"
S2725QS
SEE PRICE
Dell
27"
S2721PM
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BestBuy.com
27"
S2725QS
SEE PRICE
Walmart.com
27"
S2721PM
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Dell S2725QS

KOORUI S2721PM

Comments

  1. Comparison
 • Posted 39 minutes ago

Dell S2725QS vs KOORUI S2721PM: Main Discussion

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