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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Dell S2721QS vs Dell U2723QE
Side-by-Side Comparison
Products
Dell S2721QS
Dell U2723QE
Tested using Methodology v2.0.1
Updated Apr 24, 2025 05:20 PM
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Amazon.comTested using Methodology v2.0.1
Updated Apr 24, 2025 05:57 PM
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Max Refresh Rate60 Hz
Size27"
Pixel TypeIPS
Native Resolution3840 x 2160
Max Refresh Rate60 Hz
Size27"
Pixel TypeIPS
Native Resolution3840 x 2160
Variants
- S2721QS (27")
- U2723QE (27")
Our Verdict
Dell S2721QS
Dell U2723QE
The Dell U2723QE and the Dell S2721QS are both 4k office monitors, but the U2723QE has a few more features. It has a massive USB hub that the S2721QS lacks, and it has a KVM switch, so you can control two sources with the same keyboard and mouse. The U2723QE also displays a wider range of colors in SDR and HDR with better accuracy and has an improved contrast ratio. Both get bright in SDR, but the S2721QS is better in bright rooms because it has improved reflection handling.
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S2721QS
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U2723QE
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Amazon.comMain Differences forPC Gaming
PC Gaming
Threshold
PC Gaming
5.9
6.0
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
8.0
Build Quality Picture
Ergonomics
8.8
9.4
Ergonomics Picture
Back Picture
Height Adjustment
4.3" (11.0 cm)
5.9" (15.0 cm)
Min Height To Top Of Panel
15.4" (39.0 cm)
15.1" (38.4 cm)
Tilt Range
-20° to 2.5°
-21° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Both Ways
Swivel Range
-30° to 30°
-45° to 45°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
10.2" (25.9 cm)
10.6" (27.0 cm)
Base Depth
6.9" (17.6 cm)
7.3" (18.5 cm)
Thickness (With Display)
5.1" (13.0 cm)
5.5" (14.0 cm)
Weight (With Display)
13.9 lbs (6.3 kg)
13.7 lbs (6.2 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.2 cm)
24.1" (61.2 cm)
Housing Height
14.3" (36.3 cm)
13.9" (35.4 cm)
Thickness (Without Stand)
2.0" (5.2 cm)
2.0" (5.0 cm)
Weight (Without Stand)
10.6 lbs (4.8 kg)
9.9 lbs (4.5 kg)
Borders Size (Bezels)
0.3" (0.7 cm)
0.3" (0.8 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Picture Quality
Contrast
6.3
7.1
Checkerboard Picture
Native Contrast
1,221 : 1
1,978 : 1
Contrast With Local Dimming
N/A
1,811 : 1
Local Dimming
0.0
1.0
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Edge
SDR Brightness
8.0
7.9
Real Scene
362 cd/m²
340 cd/m²
Peak 2% Window
369 cd/m²
338 cd/m²
Peak 10% Window
370 cd/m²
342 cd/m²
Peak 25% Window
371 cd/m²
341 cd/m²
Peak 50% Window
373 cd/m²
341 cd/m²
Peak 100% Window
374 cd/m²
341 cd/m²
Sustained 2% Window
368 cd/m²
338 cd/m²
Sustained 10% Window
369 cd/m²
341 cd/m²
Sustained 25% Window
371 cd/m²
341 cd/m²
Sustained 50% Window
372 cd/m²
341 cd/m²
Sustained 100% Window
373 cd/m²
341 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.001
Minimum Brightness
32 cd/m²
33 cd/m²
HDR Brightness
6.6
6.8
EOTF
VESA DisplayHDR Certification
No Certification
DisplayHDR 400 - 1.0/1.1
Real Scene
370 cd/m²
412 cd/m²
Peak 2% Window
387 cd/m²
416 cd/m²
Peak 10% Window
386 cd/m²
415 cd/m²
Peak 25% Window
386 cd/m²
415 cd/m²
Peak 50% Window
385 cd/m²
415 cd/m²
Peak 100% Window
385 cd/m²
414 cd/m²
Sustained 2% Window
386 cd/m²
415 cd/m²
Sustained 10% Window
386 cd/m²
414 cd/m²
Sustained 25% Window
385 cd/m²
414 cd/m²
Sustained 50% Window
385 cd/m²
414 cd/m²
Sustained 100% Window
384 cd/m²
413 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.001
Horizontal Viewing Angle
8.1
8.0
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
40°
43°
Color Washout From Right
44°
43°
Horizontal Hue Graph
Color Shift From Left
58°
49°
Color Shift From Right
62°
54°
Horizontal Lightness Graph
Brightness Loss From Left
44°
45°
Brightness Loss From Right
48°
45°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
42°
48°
Gamma Shift From Right
44°
49°
Vertical Viewing Angle
8.3
7.1
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
35°
35°
Color Washout From Above
37°
33°
Vertical Hue Graph
Color Shift From Below
61°
38°
Color Shift From Above
62°
42°
Vertical Lightness Graph
Brightness Loss From Below
38°
37°
Brightness Loss From Above
38°
35°
Black Level Raise From Below
70°
65°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
60°
36°
Gamma Shift From Above
67°
34°
Gray Uniformity
7.8
7.7
50% Uniformity Picture
50% Std. Dev.
4.171%
3.203%
50% DSE
0.142%
0.156%
Black Uniformity
7.1
5.9
Native Black Uniformity Picture
Native Std. Dev.
1.208%
1.951%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
2.687%
Color Accuracy (Pre-Calibration)
7.0
8.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Custom Color
Color Space (sRGB)
sRGB Gamut Area xy
116.9%
101.5%
White Balance dE (Avg.)
3.02
3.08
Color Temperature (Avg.)
6,926 K
6,988 K
Gamma (Avg.)
2.39
2.18
Color dE (Avg.)
3.15
1.95
Contrast Setting
75
75
RGB Settings
100-100-100
100-100-100
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
75
75
Measured Brightness
334 cd/m²
174 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.6
9.8
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom Color
sRGB Gamut Area xy
102.5%
100.8%
White Balance dE (Avg.)
0.59
0.64
Color Temperature (Avg.)
6,535 K
6,530 K
Gamma (Avg.)
2.17
2.18
Color dE (Avg.)
0.57
0.35
Contrast Setting
71
73
RGB Settings
100-97-97
100-93-94
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
20
38
Measured Brightness
99 cd/m²
100 cd/m²
SDR Color Gamut
9.4
9.6
sRGB Color Gamut Picture
sRGB Coverage xy
100.0%
100.0%
sRGB Picture Mode
Custom Color
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
80.5%
89.2%
Adobe RGB Picture Mode
Custom Color
Custom Color
HDR Color Gamut
7.2
9.1
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
85.2%
97.2%
DCI-P3 Picture Mode
Desktop
DisplayHDR 400
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
61.1%
71.6%
Rec. 2020 Picture Mode
Desktop
DisplayHDR 400
HDR Color Volume
6.7
7.7
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
56.3%
71.1%
DCI-P3 Picture Mode
Desktop
DisplayHDR 400
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
24.1%
32.2%
Rec. 2020 Picture Mode
Desktop
DisplayHDR 400
Text Clarity
9.0
9.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Reflections
7.8
5.6
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Semi-Gloss
Total Reflections
4.5%
9.3%
Indirect Reflections
2.5%
5.3%
Calculated Direct Reflections
2.0%
4.0%
Gradient
9.8
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
6.0
6.0
Native Refresh Rate
60 Hz
60 Hz
Max Refresh Rate
60 Hz
60 Hz
Max Refresh Rate Over DP
60 Hz
60 Hz
Max Refresh Rate Over HDMI
60 Hz
60 Hz
Max Refresh Rate Over DP @ 10-bit
60 Hz
60 Hz
Max Refresh Rate Over HDMI @ 10-Bit
30 Hz
30 Hz
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
No
FreeSync
Yes
No
G-SYNC
Compatible (Tested)
No
VRR Maximum
60 Hz
N/A
VRR Minimum
40 Hz
No VRR
VRR Supported Connectors
DisplayPort
No VRR
VRR Motion Performance
5.3
4.9
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Normal
No VRR
Variable Overdrive Advertised
No
No
Avg. CAD
373
408
Best CAD
373
408
Worst CAD
373
408
Refresh Rate Compliance
3.9
3.8
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
59%
58%
Compliance @ 120 FPS
N/A
N/A
Compliance @ 60 FPS
59%
58%
CAD @ Max Refresh Rate
4.8
4.4
Pursuit Photo At Max Refresh
CAD Heatmap At Max Refresh
OD Transition Max Refresh Rate
OD extreme
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Normal
Normal
Avg. CAD
373
408
Best 10% CAD
215
224
Worst 10% CAD
583
611
Response Time @ Max Refresh Rate
First Response Time
15.2 ms
13.7 ms
Total Response Time
15.2 ms
16.3 ms
Recommended Overdrive Setting
Normal
Normal
RGB Overshoot
0 RGB
2 RGB
Worst 10% RGB Overshoot
0 RGB
12 RGB
Worst 10% First Response Time
25.0 ms
25.6 ms
Worst 10% Total Response Time
25.0 ms
26.9 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
CAD @ 120Hz
0.0
0.0
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
-
0 to 31
Recommended Overdrive Setting
No 120Hz Refresh Rate
No 120Hz Refresh Rate
Avg. CAD
N/A
N/A
Best 10% CAD
N/A
N/A
Worst 10% CAD
N/A
N/A
Response Time @ 120Hz
Worst 10% First Response Time
N/A
N/A
RGB Overshoot
N/A
N/A
Total Response Time
N/A
N/A
First Response Time
N/A
N/A
Recommended Overdrive Setting
No 120Hz Refresh Rate
No 120Hz Refresh Rate
Worst 10% Total Response Time
N/A
N/A
Worst 10% RGB Overshoot
N/A
N/A
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
4.8
4.4
Pursuit Photo 60Hz
CAD Heatmap 60Hz
OD Transition 60Hz
OD extreme
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
Normal
Normal
Avg. CAD
373
408
Best 10% CAD
215
224
Worst 10% CAD
583
611
Response Time @ 60Hz
Recommended Overdrive Setting
Normal
Normal
First Response Time
15.2 ms
13.7 ms
Total Response Time
15.2 ms
16.3 ms
RGB Overshoot
0 RGB
2 RGB
Worst 10% Total Response Time
25.0 ms
26.9 ms
Worst 10% First Response Time
25.0 ms
25.6 ms
Worst 10% RGB Overshoot
0 RGB
12 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Backlight Strobing Frequency Picture
Backlight Strobing (BFI)
No BFI
No BFI
Maximum Frequency
N/A
N/A
Minimum Frequency
N/A
N/A
Longest Pulse Width Brightness
N/A
N/A
Shortest Pulse Width Brightness
N/A
N/A
Pulse Width Control
No BFI
No BFI
Pulse Phase Control
No BFI
No BFI
Pulse Amplitude Control
No BFI
No BFI
VRR At The Same Time
No BFI
No BFI
VRR Flicker
9.4
0.0
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.5 RGB
N/A
Middle Gray Flicker
0.3 RGB
N/A
Light Gray Flicker
0.1 RGB
N/A
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.3
8.2
Native Resolution @ Max Hz
8.7 ms
9.1 ms
Native Resolution @ 120Hz
N/A
N/A
Native Resolution @ 60Hz
8.7 ms
9.1 ms
Backlight Strobing (BFI)
N/A
N/A
Resolution
8.8
8.8
Native Resolution
3840 x 2160
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
8.3 MP
Pixel Density
163 PPI
163 PPI
PS5 Compatibility
2.3
2.9
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
No
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
No
No
1080p @ 60Hz
Yes
Yes
Xbox Series X|S Compatibility
3.9
2.9
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
No
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
No
No
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
No
No
1080p @ 60Hz
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
1 (HDMI 2.0)
HDMI 2.1 Bandwidth
No HDMI 2.1
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
DisplayPort Out
3.5mm Audio Out
1
1
HDR10
Yes
Yes
3.5mm Audio In
No
No
3.5mm Microphone In
No
No
USB
USB-A Ports
0
5
USB-A Rated Speed
No USB-A Ports
10Gbps (USB 3.2 Gen 2)
USB-B Upstream Port
No
No
USB-C Ports
0
3
USB-C Upstream
No USB-C Ports
Yes
USB-C Rated Speed
No USB-C Ports
10Gbps (USB 3.2 Gen 2)
USB-C Power Delivery
No USB-C Ports
90W
USB-C DisplayPort Alt Mode
No USB-C Ports
Yes
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
PIP + PBP
KVM Switch
No
Yes
On-Screen Display (OSD)
OSD Picture
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27"
S2721QS
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U2723QE
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Amazon.com27"
S2721QS
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Amazon.com27"
U2723QE
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Dell S2721QS
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Comments
Dell S2721QS vs Dell U2723QE: Main Discussion
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