Comparison between:
- 27" Dell C2722DE
- 34.14" Dell U3421WE
- 27" Dell E2720H
- 27" Dell S2721QS

Brand, series, model

Information about the brand, series, model and model aliases.

Dell C2722DEDell U3421WEDell E2720HDell S2721QS
Series-UltraSharp--
Dell C2722DEDell U3421WEDell E2720HDell S2721QS
Model alias-UltraSharp U3421WE--
Model year2021202020202020

Display

Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.

Size class27 in34.14 in27 in27 in
Diagonal684.7 mm
68.47 cm
26.9567 in
2.2464 ft
867.2 mm
86.72 cm
34.1417 in
2.8451 ft
685.99 mm
68.599 cm
27.0075 in
2.2506 ft
684.7 mm
68.47 cm
26.9567 in
2.2464 ft
Width596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
799.8 mm
79.98 cm
31.4882 in
2.624 ft
597.89 mm
59.789 cm
23.539 in
1.9616 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
Height335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
334.8 mm
33.48 cm
13.1811 in
1.0984 ft
336.31 mm
33.631 cm
13.2406 in
1.1034 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
Radius of curvature-1900 mm
190 cm
74.8031 in
6.2336 ft
--
Panel manufacturer-LG Display--
Panel typeIPSAH-IPSIPSIPS
Panel bit depth8 bits10 bits8 bits10 bits
Colors16777216 colors
24 bits
1073741824 colors
30 bits
16777216 colors
24 bits
1073741824 colors
30 bits
Aspect ratio1.778:1
16:9
2.389:11.778:1
16:9
1.778:1
16:9
Resolution2560 x 1440 pixels
Quad HD (QHD) / 1440p
3440 x 1440 pixels1920 x 1080 pixels
Full HD / 1080p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
Pixel pitch0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
0.311 mm
0.0311 cm
0.0123 in
0.001 ft
0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
Pixel density109 ppi
42 ppcm
109 ppi
43 ppcm
81 ppi
32 ppcm
163 ppi
64 ppcm
Display area76.89 %-88.32 %89.83 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB-99 %-99 %
NTSC (1953)--72 %-
DCI P3-95 %--
Brightness350 cd/m²300 cd/m²300 cd/m²350 cd/m²
Peak brightness---390 cd/m²
Static contrast1000 : 11000 : 11000 : 11300 : 1
Horizontal viewing angle178 °178 °178 °178 °
Vertical viewing angle178 °178 °178 °178 °
Minimum response time5 ms
0.0050 s
5 ms
0.0050 s
5 ms
0.0050 s
4 ms
0.0040 s
Average response time8 ms
0.0080 s
8 ms
0.0080 s
8 ms
0.0080 s
8 ms
0.0080 s
CoatingAnti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)

3D

3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.

3DNoNoNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)30 kHz - 90 kHz--130 kHz - 137 kHz
Vertical frequency (digital)56 Hz - 76 Hz60 Hz60 Hz40 Hz - 60 Hz
2560 x 1440 @ 60 Hz---

Power supply and consumption

Information about the power supply and consumption, energy efficiency class, etc.

110V100 V - 120 V100 V - 120 V100 V - 120 V100 V - 120 V
220V220 V - 240 V220 V - 240 V220 V - 240 V220 V - 240 V
Alternating current frequency50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz
Electric current (A)1.8 A3 A1 A-
Power consumption (off)0.3 W0.5 W0.3 W0.3 W
Power consumption (sleep)0.3 W0.5 W0.5 W0.3 W
Power consumption (eco)---24.3 W
Power consumption (average)-36 W21 W28 W
Power consumption (maximum)-210 W26 W52 W
Power consumption (annual)--41.5 kWh76.21 kWh

Dimensions, weight and color

Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.

Width612.34 mm
61.234 cm
24.1079 in
2.009 ft
813.3 mm
81.33 cm
32.0197 in
2.6683 ft
621.49 mm
62.149 cm
24.4681 in
2.039 ft
611.6 mm
61.16 cm
24.0787 in
2.0066 ft
Height425.43 mm
42.543 cm
16.7492 in
1.3958 ft
-366.31 mm
36.631 cm
14.4217 in
1.2018 ft
364.6 mm
36.46 cm
14.3543 in
1.1962 ft
Depth53.93 mm
5.393 cm
2.1232 in
0.1769 ft
-52.34 mm
5.234 cm
2.0606 in
0.1717 ft
55.4 mm
5.54 cm
2.1811 in
0.1818 ft
Weight5.74 kg
12.65 lbs
7.52 kg
16.58 lbs
4.5 kg
9.92 lbs
4.7 kg
10.36 lbs
Width with stand612.34 mm
61.234 cm
24.1079 in
2.009 ft
813.3 mm
81.33 cm
32.0197 in
2.6683 ft
621.49 mm
62.149 cm
24.4681 in
2.039 ft
611.6 mm
61.16 cm
24.0787 in
2.0066 ft
Height with stand445.57 mm
44.557 cm
17.5421 in
1.4618 ft
392.8 mm
39.28 cm
15.4646 in
1.2887 ft
458.11 mm
45.811 cm
18.0358 in
1.503 ft
400.1 mm
40.01 cm
15.752 in
1.3127 ft
Depth with stand230 mm
23 cm
9.0551 in
0.7546 ft
237.4 mm
23.74 cm
9.3465 in
0.7789 ft
174.752 mm
17.4752 cm
6.88 in
0.5733 ft
174.7 mm
17.47 cm
6.878 in
0.5732 ft
Weight with stand-11.87 kg
26.17 lbs
5.88 kg
12.96 lbs
6.4 kg
14.11 lbs
Box weight-16.62 kg
36.64 lbs
8.07 kg
17.79 lbs
9.2 kg
20.28 lbs
ColorsBlackPlatinum SilverBlackSilver

Ergonomics

Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.

VESA mountYesYesYesYes
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm100 x 100 mm
Removable standYesYesYesYes
Height adjustmentYesYesNoYes
Height adjustment range120 mm
12 cm
4.7244 in
0.3937 ft
150 mm
15 cm
5.9055 in
0.4921 ft
-110 mm
11 cm
4.3307 in
0.3609 ft
Landscape/portrait pivotYesNoNoYes
Left pivot90 °--90 °
Right pivot90 °--90 °
Left/right swivelYesYesNoYes
Left swivel45 °30 °-30 °
Right swivel45 °30 °-30 °
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt21 °21 °21 °21 °
--Stand width - 205 mm
Stand depth - 175 mm
Stand width - 257 mm
Stand depth - 174.7 mm

Audio

Information about the audio system - number and power of the built-in speakers, supported audio technologies.

Speakers2 x 5 W2 x 5 W-2 x 3 W

Camera

Many contemporary desktop monitors and smart TV sets have built-in cameras.

CameraYesNoNoNo
Image resolution2456 x 2054 pixels
5.04 MP
---
Video resolution1920 x 1080 pixels
2.07 MP
---
Built-in microphones
Facial recognition through Windows Hello
LED indicator
Pop-up mechanism
Teams button and LED
---

Network

Supported network technologies and standards for exchanging data with other devices.

NetworkLAN---

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity3 x USB 3.2 (Type-A; Gen 1; downstream)
1 x USB 3.2 (Type-C; Gen 1; upstream; 65W; DP Alt Mode)
1 x USB 3.2 (Type-C; Gen 1; downstream; 15W)
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x Ethernet RJ45
1 x HDMI 2.0
1 x DisplayPort 1.2 (Output MST)
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
1 x USB 3.1 (Type-C; upstream; 90W; DP Alt Mode)
1 x USB 3.1 (Type-C; downstream; 15W)
4 x USB 3.2 (Type-A; Gen 1; downstream; 5 Gbps)
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x Ethernet RJ45
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
1 x DisplayPort 1.2
1 x D-sub
2 x HDMI 2.0
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
High-bandwidth Digital Content Protection (HDCP) 2.2High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP) 1.2High-bandwidth Digital Content Protection (HDCP) 2.2

Features

Some additional functional features of the model.

FeaturesComfortView Plus
Dell Display Manager
Flicker-free technology
Low Blue Light
KVM Switch (auto)
Picture-by-Picture
Picture-in-Picture
ComfortView
Flicker-free technology
KVM Switch
Low Blue Light
Picture-by-Picture
Picture-in-Picture
Dell Display Manager
Flicker-free technology
Low Blue Light
PowerNap
3-sided bezeless design
AMD FreeSync technology
Flicker-free technology
Low Blue Light

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesEnergy Star 8.0
EPEAT Gold
RoHS
TCO Certified Displays
Microsoft Teams Certified
Windows Hello (Cortana)
Energy Star
EPEAT Gold
RoHS
TCO Certified Displays
TUV Rheinland Flicker Free Certified
TUV Rheinland Low Blue Light Certified
Energy Star
EPEAT
TCO Certified Display
ENERGY STAR 8.0
EPEAT
RoHS
TCO Certified
TUV Flicker Free
TUV Low Blue Light

Operating and storage conditions

There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.

Operating temperature0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
0 °C - 40 °C
32 °F - 104 °F
Operating humidity10 % - 80 %10 % - 80 %10 % - 80 %10 % - 80 %
Operating altitude5000 m
16404.2 ft
5000 m
16404.2 ft
5000 m
16404.2 ft
5000 m
16404.2 ft
Storage temperature-20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
-20 °C - 60 °C
-4 °F - 140 °F
Storage humidity5 % - 90 %5 % - 90 %5 % - 90 %5 % - 90 %
Storage altitude12192 m
40000 ft
12192 m
40000 ft
12192 m
40000 ft
12192 m
40000 ft

Accessories

Often the packaging of desktop monitors and smart TV sets includes accessories for them.

AccessoriesDisplayPort cable
USB Type-A to Type-B cable
USB Type-C to Type-C cable
DisplayPort cable
HDMI cable
USB Type-A to Type-B cable
USB Type-C to Type-C cable
DisplayPort cable
VGA cable (EMEA and Japan only)
HDMI cable

Additional features

Information about other features.

Additional featuresSecurity lock slotSecurity lock slotSecurity lock slotAnti-theft stand lock slot - Kensington
 Dell C2722DEDell U3421WEDell E2720HDell S2721QS