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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
Dell UltraSharp U2720Q vs Dell UltraSharp U2721DE
Side-by-Side Comparison
Products
Dell UltraSharp U2720Q
Dell UltraSharp U2721DE
Tested using Methodology v1.2
Updated Apr 15, 2024 02:43 PM
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Amazon.comTested using Methodology v1.1
Updated Dec 14, 2023 04:44 PM
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Amazon.com
Max Refresh Rate60 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateNo
HDR10Yes
Native Resolution3840 x 2160
Max Refresh Rate60 Hz
Size27"
Pixel TypeIPS
Variable Refresh RateNo VRR
HDR10No
Native Resolution2560 x 1440
Variants
- U2720Q (27")
- UltraSharp U2721DE (27")
Our Verdict
Dell UltraSharp U2720Q
Dell UltraSharp U2721DE
The Dell UltraSharp U2720Q is much better than the Dell UltraSharp U2721DE. The U2720Q supports HDR, and it has a much higher native resolution, resulting in much clearer text, and better multitasking thanks to the greater screen real estate. On the other hand, the Dell U2721DE has better reflection handling, so it might be a better choice for a bright office environment.
Check Price
27"
U2720Q
SEE PRICE
Amazon.com27"
UltraSharp U2721DE
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Amazon.com27"
U2720Q
SEE PRICE
BestBuy.com27"
UltraSharp U2721DE
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BestBuy.com27"
U2720Q
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Walmart.com27"
UltraSharp U2721DE
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Walmart.comMain Differences forMixed Usage
Mixed Usage
Threshold
Mixed Usage
7.6
7.4
Text Clarity
9.0
7.0
Resolution And Size
9.0
8.3
HDR Color Gamut
8.8
0.0
Full Comparison
Design
Style
Design Picture
Curved
No
No
Curve Radius
Not Curved
Not Curved
Size
27"
27"
Weight (without stand)
9.8 lbs (4.4 kg)
8.9 lbs (4.0 kg)
Weight (with stand)
13.7 lbs (6.2 kg)
12.6 lbs (5.7 kg)
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
7.5
7.5
Build Quality Picture
Ergonomics
9.2
8.5
Ergonomics Picture
Back Picture
Height Adjustment
5.1" (13.0 cm)
5.1" (13.0 cm)
Tilt Range
-20° to 5°
-20° to 5°
Rotate Portrait/Landscape
Yes, Both Ways
Yes, Both Ways
Swivel Range
-45° to 45°
-40° to 40°
Wall Mount
VESA 100x100
VESA 100x100
Stand
Stand Picture
Thickness Picture
Base Width
9.6" (24.5 cm)
9.1" (23.0 cm)
Base Depth
7.3" (18.5 cm)
7.1" (18.0 cm)
Thickness (With Display)
5.0" (12.8 cm)
5.0" (12.8 cm)
Weight (With Display)
13.7 lbs (6.2 kg)
12.6 lbs (5.7 kg)
Display
Display Picture
Size
27"
27"
Housing Width
24.1" (61.1 cm)
Housing Height
14.0" (35.5 cm)
Thickness (Without Stand)
2.0" (5.0 cm)
1.5" (3.8 cm)
Weight (Without Stand)
9.8 lbs (4.4 kg)
8.9 lbs (4.0 kg)
Borders Size (Bezels)
0.3" (0.7 cm)
0.2" (0.6 cm)
Controls
Controls Picture
In The Box
In The Box Picture
Power Supply
Internal
Internal
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.3" (0.7 cm)
0.2" (0.6 cm)
Thickness
Thickness Picture
Thickness (with stand)
5.0" (12.8 cm)
5.0" (12.8 cm)
Thickness (without stand)
2.0" (5.0 cm)
1.5" (3.8 cm)
Picture Quality
Contrast
6.0
6.0
Checkerboard Picture
Native Contrast
1,121 : 1
1,014 : 1
Contrast With Local Dimming
619 : 1
N/A
Local Dimming
1.5
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Brightness
7.7
7.7
Real Scene
307 cd/m²
314 cd/m²
Peak 2% Window
316 cd/m²
347 cd/m²
Peak 10% Window
317 cd/m²
348 cd/m²
Peak 25% Window
318 cd/m²
348 cd/m²
Peak 50% Window
318 cd/m²
349 cd/m²
Peak 100% Window
318 cd/m²
349 cd/m²
Sustained 2% Window
316 cd/m²
347 cd/m²
Sustained 10% Window
317 cd/m²
348 cd/m²
Sustained 25% Window
317 cd/m²
348 cd/m²
Sustained 50% Window
318 cd/m²
349 cd/m²
Sustained 100% Window
318 cd/m²
349 cd/m²
Automatic Brightness Limiting (ABL)
0.000
0.000
Minimum Brightness
29 cd/m²
HDR Brightness
6.8
0.0
EOTF
VESA DisplayHDR Certification
DisplayHDR 400 - 1.0/1.1
Real Scene
442 cd/m²
N/A
Peak 2% Window
221 cd/m²
N/A
Peak 10% Window
454 cd/m²
N/A
Peak 25% Window
457 cd/m²
N/A
Peak 50% Window
459 cd/m²
N/A
Peak 100% Window
460 cd/m²
N/A
Sustained 2% Window
220 cd/m²
N/A
Sustained 10% Window
454 cd/m²
N/A
Sustained 25% Window
456 cd/m²
N/A
Sustained 50% Window
459 cd/m²
N/A
Sustained 100% Window
458 cd/m²
N/A
Automatic Brightness Limiting (ABL)
0.043
N/A
Horizontal Viewing Angle
7.9
7.4
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
39°
39°
Color Washout From Right
43°
39°
Horizontal Hue Graph
Color Shift From Left
52°
48°
Color Shift From Right
58°
47°
Horizontal Lightness Graph
Brightness Loss From Left
42°
45°
Brightness Loss From Right
47°
46°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
41°
Gamma Shift From Left
39°
39°
Gamma Shift From Right
44°
38°
Vertical Viewing Angle
8.0
7.6
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
31°
32°
Color Washout From Above
38°
34°
Vertical Hue Graph
Color Shift From Below
40°
41°
Color Shift From Above
50°
43°
Vertical Lightness Graph
Brightness Loss From Below
33°
34°
Brightness Loss From Above
41°
36°
Black Level Raise From Below
70°
70°
Black Level Raise From Above
70°
70°
Gamma Shift From Below
64°
44°
Gamma Shift From Above
70°
63°
Gray Uniformity
7.9
8.7
50% Uniformity Picture
50% Std. Dev.
3.435%
2.436%
50% DSE
0.139%
0.115%
5% Uniformity Picture
5% Std. Dev.
0.279%
5% DSE
0.041%
Black Uniformity
6.2
7.1
Native Black Uniformity Picture
Native Std. Dev.
1.740%
1.219%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
2.721%
N/A
Color Accuracy (Pre-Calibration)
8.6
7.1
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Color Space (sRGB)
Standard
sRGB Gamut Area xy
97.3%
White Balance dE (Avg.)
2.80
3.53
Color Temperature (Avg.)
7,124 K
5,949 K
Gamma (Avg.)
2.10
2.24
Color dE (Avg.)
2.16
3.19
Contrast Setting
75
78
RGB Settings
Default
100-100-100
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
75
22
Measured Brightness
251 cd/m²
103 cd/m²
Brightness Locked
No
Color Accuracy (Post-Calibration)
9.7
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom Color
Custom Color
sRGB Gamut Area xy
101.2%
White Balance dE (Avg.)
0.54
0.40
Color Temperature (Avg.)
6,475 K
6,489 K
Gamma (Avg.)
2.18
2.17
Color dE (Avg.)
0.36
0.52
Contrast Setting
70
78
RGB Settings
100-96-97
94-92-100
Gamma Setting
No Gamma Setting
No Gamma Setting
Brightness Setting
26
23
Measured Brightness
100 cd/m²
101 cd/m²
ICC Profile
SDR Color Gamut
9.4
8.6
sRGB Color Gamut Picture
sRGB Coverage xy
99.3%
96.8%
sRGB Picture Mode
Custom Color
Custom Color
Adobe RGB Color Gamut Picture
Adobe RGB Coverage xy
83.3%
75.3%
Adobe RGB Picture Mode
Custom Color
Custom Color
SDR Color Volume
9.6
8.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
97.5%
96.6%
sRGB Picture Mode
Custom Color
Custom Color
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
88.9%
81.4%
Adobe RGB Picture Mode
Custom Color
Custom Color
HDR Color Gamut
8.8
0.0
Wide Color Gamut
Yes
N/A
DCI-P3 Color Gamut Picture
DCI-P3 Coverage xy
95.2%
DCI-P3 Picture Mode
Display HDR
No HDR
Rec. 2020 Color Gamut Picture
Rec. 2020 Coverage xy
66.7%
N/A
Rec. 2020 Picture Mode
Display HDR
No HDR
DCI P3 xy
N/A
HDR Color Volume
7.2
0.0
DCI-P3 Color Volume ITP Picture
DCI-P3 In ICtCp
72.5%
N/A
DCI-P3 Picture Mode
Display HDR
No HDR
Rec. 2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
65.9%
N/A
Rec. 2020 Picture Mode
Display HDR
No HDR
Image Retention
10
Image Retention Picture
IR After 0 Min Recovery
0.00%
IR After 2 Min Recovery
0.00%
IR After 4 Min Recovery
0.00%
IR After 6 Min Recovery
0.00%
IR After 8 Min Recovery
0.00%
IR After 10 Min Recovery
0.00%
Reflections
6.4
7.6
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Matte
Total Reflections
7.5%
6.5%
Indirect Reflections
4.2%
5.7%
Calculated Direct Reflections
3.3%
0.8%
Text Clarity
9.0
7.0
ClearType On
ClearType Off
Pixel Type
IPS
IPS
Pixels
Subpixel Layout
RGB
RGB
Gradient
9.2
7.8
Gradient Picture
Color Depth
10 Bit
8 Bit
Color Bleed
10
Color Bleed Horizontal
Pixel Row Error
0.000%
Color Bleed Vertical
Pixel Column Error
0.002%
Motion
Refresh Rate
6.0
Native Refresh Rate
60 Hz
60 Hz
Max Refresh Rate
60 Hz
60 Hz
Max Refresh Rate Over DP
60 Hz
Max Refresh Rate Over HDMI
60 Hz
Max Refresh Rate Over DP @ 10-bit
60 Hz
Max Refresh Rate Over HDMI @ 10-Bit
30 Hz
Variable Refresh Rate (VRR)
FreeSync
No
No
G-SYNC
No
No
VRR Maximum
N/A
N/A
VRR Minimum
No VRR
No VRR
VRR Supported Connectors
No VRR
No VRR
Variable Refresh Rate
No
No VRR
Native
60 Hz
60 Hz
Max Refresh Rate
60 Hz
60 Hz
Variable Refresh Rate
No
Response Time @ Max Refresh Rate
5.7
7.1
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Normal
Rise / Fall Time
8.1 ms
7.7 ms
Total Response Time
18.8 ms
19.2 ms
Overshoot Error
4.3%
4.5%
Worst 3 Rise / Fall Time
10.2 ms
8.4 ms
Worst 3 Total Response Time
34.3 ms
20.7 ms
Worst 3 Overshoot Error
22.0%
6.0%
Response Time @ 120Hz
0.0
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
No 120Hz Refresh Rate
Rise / Fall Time
N/A
Total Response Time
N/A
Overshoot Error
N/A
Worst 3 Rise / Fall Time
N/A
Worst 3 Total Response Time
N/A
Worst 3 Overshoot Error
N/A
Response Time @ 60Hz
5.7
7.1
Motion Blur Picture
Response Time Table
Recommended Overdrive Setting
Normal
Normal
Rise / Fall Time
8.1 ms
7.7 ms
Total Response Time
18.8 ms
19.2 ms
Overshoot Error
4.3%
4.5%
Worst 3 Rise / Fall Time
10.2 ms
8.4 ms
Worst 3 Total Response Time
34.3 ms
20.7 ms
Worst 3 Overshoot Error
22.0%
6.0%
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
Shortest Pulse Width Brightness
N/A
Pulse Width Control
No BFI
Pulse Phase Control
No BFI
Pulse Amplitude Control
No BFI
VRR At The Same Time
No BFI
Image Flicker
10
10
Backlight Picture
Flicker-Free
Yes
Yes
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.2
9.0
Native Resolution @ Max Hz
9.3 ms
8.7 ms
Native Resolution @ 120Hz
N/A
Native Resolution @ 60Hz
9.3 ms
8.7 ms
Variable Refresh Rate
N/A
Variable Refresh Rate @ 60Hz
N/A
10 Bit HDR
N/A
Backlight Strobing (BFI)
N/A
N/A
Resolution And Size
9.0
8.3
Native Resolution
3840 x 2160
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
3.7 MP
Pixel Density
164 PPI
109 PPI
Measured Screen Diagonal
27.0"
27.0"
Screen Area
310 in²
310 in²
PS5 Compatibility
6.0
PS5 Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
No
1440p @ 60Hz
Yes
1080p @ 120Hz
No
1080p @ 60Hz
Yes
HDR
Yes
VRR
No
Xbox Series X|S Compatibility
5.8
XSX Compatibility Photo
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
No
1440p @ 60Hz
Yes
1080p @ 120Hz
No
1080p @ 60Hz
Yes
HDR
Yes
VRR
No
Inputs Photos
Inputs 1
Inputs 2
Video And Audio Ports
DisplayPort
1 (DP 1.4)
1 (DP 1.4)
Mini DisplayPort
No
No
HDMI
1 (HDMI 2.0)
1 (HDMI 1.4)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
No
VGA
No
No
Daisy Chaining
No
3.5mm Audio Out
1
1
HDR10
Yes
No
3.5mm Audio In
No
3.5mm Microphone In
No
No
DisplayPort Out
1 (DP 1.4)
USB
3
4 (USB 3.0)
USB C
2
1 (USB, USB PD, DP Alt Mode)
Digital Optical Audio Out
No
Analog Audio Out RCA
No
Power Supply
Internal
Internal
USB
USB-A Ports
3
4 (USB 3.0)
USB-A Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-B Upstream Port
No
USB-C Ports
2
1 (USB, USB PD, DP Alt Mode)
USB-C Upstream
Yes
USB-C Rated Speed
5Gbps (USB 3.2 Gen 1)
USB-C Power Delivery
90W
USB-C DisplayPort Alt Mode
Yes
Thunderbolt
No
macOS Compatibility
macOS Screenshot
Features
Additional Features
Speakers
No
No
RGB Illumination
No
No
Multiple Input Display
No
No
KVM Switch
No
HDR10
Yes
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27"
U2720Q
SEE PRICE
Amazon.com27"
UltraSharp U2721DE
SEE PRICE
Amazon.com27"
U2720Q
SEE PRICE
BestBuy.com27"
UltraSharp U2721DE
SEE PRICE
BestBuy.com27"
U2720Q
SEE PRICE
Walmart.com27"
UltraSharp U2721DE
SEE PRICE
Walmart.com
Dell UltraSharp U2720Q
Dell UltraSharp U2721DE
Comments
Dell UltraSharp U2720Q vs Dell UltraSharp U2721DE: Main Discussion
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