Products
Dell S2721QS
Dell U2725QE
Tested using Methodology v2.0.1
Updated Sep 30, 2025 04:33 PM
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Tested using Methodology v2.1.1
Updated Nov 07, 2025 02:03 PM
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Max Refresh Rate
60 Hz
Size
27"
Pixel Type
IPS
Native Resolution
3840 x 2160
Max Refresh Rate
120 Hz
Size
27"
Pixel Type
IPS
Native Resolution
3840 x 2160
Our Verdict
Dell S2721QS
Dell U2725QE
The Dell S2721QS and the Dell U2725QE are 4k 27-inch office monitors. The U2725QE is the better option if you can afford it, as it gets brighter, displays a wider range of more vivid colors, and has a higher 120Hz refresh rate and better connectivity. However, if you don't need these extra features and prefer to save money, the S2721QS is excellent for office work.
Variants
- S2721QS (27")
- U2725QE (27")
Check Price
27"
S2721QS
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27"
U2725QE
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Walmart.com
27"
S2721QS
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Walmart.com
27"
U2725QE
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Amazon.com
27"
S2721QS
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27"
U2725QE
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27"
S2721QS
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27"
U2725QE
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Main Differences for
PC Gaming
PC Gaming
Threshold
PC Gaming
5.9
6.5
Refresh Rate
6.0
7.1
Refresh Rate Compliance
3.9
1.9
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
7.5
Build Quality Picture
Ergonomics
8.8
9.7
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)
14.9" (37.9 cm)
Tilt Range
-20° to 2.5°
-20° to 7.5
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)
7.5" (19.0 cm)
Thickness (With Display)
5.1" (13.0 cm)
5.9" (15.0 cm)
Weight (With Display)
13.9 lbs (6.3 kg)
14.8 lbs (6.7 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)
2.2" (5.5 cm)
Weight (Without Stand)
10.6 lbs (4.8 kg)
11.5 lbs (5.2 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
7.3
Checkerboard Picture
Native Contrast
1,221 : 1
2,410 : 1
Contrast With Local Dimming
N/A
1,536 : 1
Local Dimming
0.0
1.5
Local Dimming Video
Local Dimming
No
Yes
Backlight
Edge
Edge
SDR Brightness
8.0
8.3
Real Scene
362 cd/m²
426 cd/m²
Peak 2% Window
369 cd/m²
420 cd/m²
Peak 10% Window
370 cd/m²
421 cd/m²
Peak 25% Window
371 cd/m²
421 cd/m²
Peak 50% Window
373 cd/m²
421 cd/m²
Peak 100% Window
374 cd/m²
422 cd/m²
Sustained 2% Window
368 cd/m²
420 cd/m²
Sustained 10% Window
369 cd/m²
420 cd/m²
Sustained 25% Window
371 cd/m²
420 cd/m²
Sustained 50% Window
372 cd/m²
421 cd/m²
Sustained 100% Window
373 cd/m²
421 cd/m²
Automatic Brightness Limiting (ABL)
0.001
0.000
Minimum Brightness
32 cd/m²
30 cd/m²
HDR Brightness
6.6
8.0
EOTF
VESA DisplayHDR Certification
No Certification
DisplayHDR 600
Real Scene
370 cd/m²
663 cd/m²
Peak 2% Window
387 cd/m²
543 cd/m²
Peak 10% Window
386 cd/m²
672 cd/m²
Peak 25% Window
386 cd/m²
681 cd/m²
Peak 50% Window
385 cd/m²
684 cd/m²
Peak 100% Window
385 cd/m²
684 cd/m²
Sustained 2% Window
386 cd/m²
542 cd/m²
Sustained 10% Window
386 cd/m²
670 cd/m²
Sustained 25% Window
385 cd/m²
680 cd/m²
Sustained 50% Window
385 cd/m²
682 cd/m²
Sustained 100% Window
384 cd/m²
682 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.014
Gray Uniformity
7.8
7.7
50% Uniformity Picture
50% Std. Dev.
4.171%
2.713%
50% DSE
0.142%
0.165%
Black Uniformity
7.1
6.3
Native Black Uniformity Picture
Native Std. Dev.
1.208%
1.494%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
3.274%
Vertical Viewing Angle
8.3
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
35°
Color Washout From Above
37°
Vertical Hue Graph
Color Shift From Below
61°
Color Shift From Above
62°
Vertical Lightness Graph
Brightness Loss From Below
38°
Brightness Loss From Above
38°
Black Level Raise From Below
70°
Black Level Raise From Above
70°
Gamma Shift From Below
60°
Gamma Shift From Above
67°
Color Accuracy (Pre-Calibration)
7.0
7.8
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Custom Color
Color Space (sRGB)
sRGB Gamut Area xy
116.9%
101.8%
White Balance dE (Avg.)
3.02
5.58
Color Temperature (Avg.)
6,926 K
6,817 K
Gamma (Avg.)
2.39
2.19
Color dE (Avg.)
3.15
3.20
Contrast Setting
75
75
RGB Settings
100-100-100
Default
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
75
75
Measured Brightness
334 cd/m²
183 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.6
9.6
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom Color
sRGB Gamut Area xy
102.5%
100.9%
White Balance dE (Avg.)
0.59
1.19
Color Temperature (Avg.)
6,535 K
6,413 K
Gamma (Avg.)
2.17
2.18
Color dE (Avg.)
0.57
0.57
Contrast Setting
71
75
RGB Settings
100-97-97
Gain (92-90-96), Offset (50,50,50)
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
20
36
Measured Brightness
99 cd/m²
100 cd/m²
SDR Color Gamut
9.4
9.8
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%
94.1%
Adobe RGB Picture Mode
Custom Color
Custom Color
HDR Color Gamut
7.2
9.5
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
85.2%
98.8%
DCI-P3 Picture Mode
Desktop
DisplayHDR 600
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
61.1%
77.0%
Rec. 2020 Picture Mode
Desktop
DisplayHDR 600
HDR Color Volume
6.7
8.1
DCI-P3 Color Volume ITP Picture
1,000 cd/m² DCI-P3 Coverage ICtCp
56.3%
72.1%
DCI-P3 Picture Mode
Desktop
DisplayHDR 600
Rec. 2020 Color Volume ITP Picture
10,000 cd/m² Rec. 2020 Coverage ICtCp
24.1%
37.0%
Rec. 2020 Picture Mode
Desktop
DisplayHDR 600
Viewing Angle
8.1
8.4
Viewing Angle Video
Chroma Graph
Color Washout From Left
40°
43°
Color Washout From Right
44°
44°
Hue Graph
Color Shift From Left
58°
66°
Color Shift From Right
62°
70°
Lightness Graph
Brightness Loss From Left
44°
45°
Brightness Loss From Right
48°
47°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
42°
50°
Gamma Shift From Right
44°
52°
Text Clarity
9.0
9.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Direct Reflections
6.4
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
32.8%
Screen Finish
Matte
Matte
Reflections
7.8
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
4.5%
Indirect Reflections
2.5%
Calculated Direct Reflections
2.0%
Ambient Black Level Raise
8.5
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.08 cd/m²
Black Luminance @ 1000 lx
0.65 cd/m²
Total Reflected Light
6.2
Bright Room Off Picture
Total Reflection Ring Light Picture
Total Reflected Light Intensity
29,369% ⋅ pixel
Diffraction Artifacts
No
Gradient
9.8
9.6
Gradient Picture
Color Depth
10 Bit
10 Bit
Motion
Refresh Rate
6.0
7.1
Native Refresh Rate
60 Hz
120 Hz
Max Refresh Rate
60 Hz
120 Hz
Max Refresh Rate Over DP
60 Hz
120 Hz
Max Refresh Rate Over HDMI
60 Hz
120 Hz
Max Refresh Rate Over DP @ 10-bit
60 Hz
120 Hz
Max Refresh Rate Over HDMI @ 10-Bit
30 Hz
120 Hz
DSC Toggle
No
DSC Off Max Refresh Rate Over DP
N/A
DSC Off Max Refresh Rate Over HDMI
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Yes
Compatible (Tested)
G-SYNC
Compatible (Tested)
Compatible (Tested)
VRR Maximum
60 Hz
120 Hz
VRR Minimum
40 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort
DisplayPort, HDMI
VRR Motion Performance
5.3
5.5
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
Normal
Normal
Variable Overdrive Advertised
No
No
Avg. CAD
373
356
Best CAD
373
346
Worst CAD
373
376
Refresh Rate Compliance
3.9
1.9
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
59%
32%
Compliance @ 120 FPS
N/A
32%
Compliance @ 60 FPS
59%
56%
CAD @ Max Refresh Rate
4.8
5.2
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
Fast
Avg. CAD
373
311
Best 10% CAD
215
171
Worst 10% CAD
583
626
Response Time @ Max Refresh Rate
First Response Time
15.2 ms
8.4 ms
Total Response Time
15.2 ms
15.1 ms
Recommended Overdrive Setting
Normal
Fast
RGB Overshoot
0 RGB
8 RGB
Worst 10% RGB Overshoot
0 RGB
25 RGB
Worst 10% First Response Time
25.0 ms
23.4 ms
Worst 10% Total Response Time
25.0 ms
23.9 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
CAD @ 120Hz
0.0
5.2
Pursuit Photo 120Hz
CAD Heatmap 120Hz
OD Transition 120Hz
-
0 to 31
OD fast
0 to 31
Recommended Overdrive Setting
No 120Hz Refresh Rate
Fast
Avg. CAD
N/A
311
Best 10% CAD
N/A
171
Worst 10% CAD
N/A
626
Response Time @ 120Hz
Worst 10% First Response Time
N/A
23.4 ms
RGB Overshoot
N/A
8 RGB
Total Response Time
N/A
15.1 ms
First Response Time
N/A
8.4 ms
Recommended Overdrive Setting
No 120Hz Refresh Rate
Fast
Worst 10% Total Response Time
N/A
23.9 ms
Worst 10% RGB Overshoot
N/A
25 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
CAD @ 60Hz
4.8
4.6
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
378
Best 10% CAD
215
219
Worst 10% CAD
583
639
Response Time @ 60Hz
Recommended Overdrive Setting
Normal
Normal
First Response Time
15.2 ms
11.0 ms
Total Response Time
15.2 ms
20.0 ms
RGB Overshoot
0 RGB
6 RGB
Worst 10% Total Response Time
25.0 ms
28.6 ms
Worst 10% First Response Time
25.0 ms
21.8 ms
Worst 10% RGB Overshoot
0 RGB
20 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
9.0
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
0.5 RGB
0.9 RGB
Middle Gray Flicker
0.3 RGB
0.2 RGB
Light Gray Flicker
0.1 RGB
0.4 RGB
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.3
8.7
Native Resolution @ Max Hz
8.7 ms
5.0 ms
Native Resolution @ 120Hz
N/A
5.0 ms
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
10
PS5 Compatibility Photo
PS5 Compatibility Table
4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
No
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
No
Yes
1080p @ 60Hz
Yes
Yes
Xbox Series X|S Compatibility
3.9
10
XSX Compatibility Photo
XSX Compatibility Table
4k @ 120Hz
No
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
No
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
No
Yes
1080p @ 60Hz
Yes
Yes
Inputs Photos
Inputs 1
Inputs 2
Inputs
Inputs 1
Inputs 2
DisplayPort
1 (DP 1.2)
1 (DP 1.4)
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
No DisplayPort 2.1
Mini DisplayPort
No
No
DVI
No
HDMI
2 (HDMI 2.0)
1 (HDMI 2.1)
VGA
No
HDMI 2.1 Bandwidth
No HDMI 2.1
48Gbps (FRL 12x4)
Daisy Chaining
No
DisplayPort Out & Thunderbolt
3.5mm Audio Out
1
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
Ethernet
Yes
HDR10
Yes
Yes
Dolby Vision
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
5
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
140W
USB-C DisplayPort Alt Mode
No USB-C Ports
Yes
Thunderbolt
No
Thunderbolt 4
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
Yes
No
HDR10
Yes
Yes
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
PIP + PBP
KVM Switch
No
Yes
Smart OS
No
On-Screen Display (OSD)
OSD Picture
Check Price
27"
S2721QS
SEE PRICE
Amazon.com
27"
U2725QE
SEE PRICE
Walmart.com
27"
S2721QS
SEE PRICE
Walmart.com
27"
U2725QE
SEE PRICE
Amazon.com
27"
S2721QS
SEARCH
B&H
27"
U2725QE
SEARCH
B&H
27"
S2721QS
SEARCH
BestBuy.com
27"
U2725QE
SEARCH
BestBuy.com
Dell S2721QS
Dell U2725QE
Comments
Dell S2721QS vs Dell U2725QE: Main Discussion
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