Comparison between:
- 27" Dell U2720Q
- 31.5" Dell UltraSharp U3219Q
- 34.14" Dell U3421WE

Brand, series, model

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

Dell U2720QDell UltraSharp U3219QDell U3421WE
SeriesUltraSharpUltraSharpUltraSharp
Dell U2720QDell UltraSharp U3219QDell U3421WE
Model aliasUltraSharp U2720Q
U2720QM
-UltraSharp U3421WE
Model year202020182020

Display

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

Size class27 in31.5 in34.14 in
Diagonal684.7 mm
68.47 cm
26.9567 in
2.2464 ft
801 mm
80.1 cm
31.5354 in
2.628 ft
867.2 mm
86.72 cm
34.1417 in
2.8451 ft
Width596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
697.31 mm
69.731 cm
27.4531 in
2.2878 ft
799.8 mm
79.98 cm
31.4882 in
2.624 ft
Height335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
392.23 mm
39.223 cm
15.4421 in
1.2868 ft
334.8 mm
33.48 cm
13.1811 in
1.0984 ft
Radius of curvature--1900 mm
190 cm
74.8031 in
6.2336 ft
Panel manufacturer-LG DisplayLG Display
Panel model-LM315WR1-????-
Panel typeIPSIPSAH-IPS
Panel bit depth10 bits (8 bits + FRC)10 bits (8 bits + FRC)10 bits
FRCYesYes-
Colors1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
Aspect ratio1.778:1
16:9
1.778:1
16:9
2.389:1
Resolution3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
3440 x 1440 pixels
Pixel pitch0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
0.182 mm
0.0182 cm
0.0071 in
0.0006 ft
0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
Pixel density163 ppi
64 ppcm
140 ppi
55 ppcm
109 ppi
43 ppcm
Display area92.04 %92.61 %-
BacklightW-LEDW-LEDW-LED
sRGB99 %99 %99 %
Adobe RGB (1998)89 %80 %-
DCI P395 %95 %95 %
Brightness350 cd/m²400 cd/m²300 cd/m²
Peak brightness450 cd/m²--
Static contrast1300 : 11300 : 11000 : 1
HDRDisplayHDR 400HDR10
DisplayHDR 400
-
Horizontal viewing angle178 °178 °178 °
Vertical viewing angle178 °178 °178 °
Minimum response time5 ms
0.0050 s
5 ms
0.0050 s
5 ms
0.0050 s
Average response time8 ms
0.0080 s
8 ms
0.0080 s
8 ms
0.0080 s
Input lag9 ms
0.0090 s
9 ms
0.0090 s
-
CoatingAnti-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.

3DNoNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)30 kHz - 140 kHz--
Vertical frequency (digital)24 Hz - 75 Hz60 Hz60 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 V
220V220 V - 240 V220 V - 240 V220 V - 240 V
Alternating current frequency50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz
Electric current (A)2.5 A1.5 A3 A
Power consumption (off)0.3 W0.3 W0.5 W
Power consumption (sleep)0.3 W0.5 W0.5 W
Power consumption (average)33 W46 W36 W
Power consumption (maximum)200 W230 W210 W

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.

Width611.3 mm
61.13 cm
24.0669 in
2.0056 ft
712.5 mm
71.25 cm
28.0512 in
2.3376 ft
813.3 mm
81.33 cm
32.0197 in
2.6683 ft
Height356 mm
35.6 cm
14.0157 in
1.168 ft
414.5 mm
41.45 cm
16.3189 in
1.3599 ft
-
Depth49.7 mm
4.97 cm
1.9567 in
0.1631 ft
44.5 mm
4.45 cm
1.752 in
0.146 ft
-
Weight4.4 kg
9.7 lbs
5.8 kg
12.79 lbs
7.52 kg
16.58 lbs
Width with stand611.3 mm
61.13 cm
24.0669 in
2.0056 ft
610.9 mm
61.09 cm
24.0512 in
2.0043 ft
813.3 mm
81.33 cm
32.0197 in
2.6683 ft
Height with stand395.2 mm
39.52 cm
15.5591 in
1.2966 ft
452.7 mm
45.27 cm
17.8228 in
1.4852 ft
392.8 mm
39.28 cm
15.4646 in
1.2887 ft
Depth with stand185 mm
18.5 cm
7.2835 in
0.607 ft
157.6 mm
15.76 cm
6.2047 in
0.5171 ft
237.4 mm
23.74 cm
9.3465 in
0.7789 ft
Weight with stand6.6 kg
14.55 lbs
9.6 kg
21.16 lbs
11.87 kg
26.17 lbs
Box weight9.6 kg
21.16 lbs
-16.62 kg
36.64 lbs
ColorsBlackBlackPlatinum Silver

Ergonomics

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

VESA mountYesYesYes
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm
Removable standYesYesYes
Height adjustmentYesYesYes
Height adjustment range130 mm
13 cm
5.1181 in
0.4265 ft
150 mm
15 cm
5.9055 in
0.4921 ft
150 mm
15 cm
5.9055 in
0.4921 ft
Landscape/portrait pivotYesYesNo
Left pivot90 °90 °-
Right pivot90 °90 °-
Left/right swivelYesYesYes
Left swivel45 °30 °30 °
Right swivel45 °30 °30 °
Forward/backward tiltYesYesYes
Forward tilt5 °5 °5 °
Backward tilt21 °21 °21 °

Audio

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

Speakers--2 x 5 W

Camera

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

CameraNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity2 x USB 3.0 (Type-A; downstream)
1 x USB 3.0 (Type-A; downstream; BC 1.2 charging at 2A)
1 x USB 3.0 (Type-C; upstream; 90W; DP Alt Mode)
1 x USB 3.0 (Type-C; downstream; 15W)
1 x HDMI 2.0 (CEC)
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out
4 x USB 3.0 (downstream)
1 x USB 3.0 (upstream)
1 x USB 3.1 (Type-C - 90 W)
1 x HDMI 2.0
1 x DisplayPort 1.4
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
High-bandwidth Digital Content Protection (HDCP) 2.2High-bandwidth Digital Content Protection (HDCP) 2.2High-bandwidth Digital Content Protection (HDCP)

Features

Some additional functional features of the model.

FeaturesFlicker-free technology
Low Blue Light
DDC/CI
Flicker-free technology
Picture-by-Picture
Picture-in-Picture
ComfortView
Flicker-free technology
KVM Switch
Low Blue Light
Picture-by-Picture
Picture-in-Picture

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesBFR-free
CEL
ENERGY STAR 6.0
EPEAT
Mercury-free
NFPA 99
PVC-free
RoHS Compliant
TCO
CECP
ENERGY STAR
Epeat Gold
RoHS compliant
TCO Certified Displays
Energy Star
EPEAT Gold
RoHS
TCO Certified Displays
TUV Rheinland Flicker Free Certified
TUV Rheinland Low Blue Light Certified

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
Operating humidity10 % - 80 %10 % - 80 %10 % - 80 %
Operating altitude5000 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
Storage humidity5 % - 90 %5 % - 90 %5 % - 90 %
Storage altitude12192 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 (U2720Q)
HDMI cable (U2720QM)
USB Type-C to Type-C cable
USB Type-C to Type-A cable
DisplayPort cable
USB Type-C cable
USB 3.0 upstream cable
DisplayPort cable
HDMI cable
USB Type-A to Type-B cable
USB Type-C to Type-C cable

Additional features

Information about other features.

Additional featuresSecurity lock slotSecurity lock slotSecurity lock slot
 Dell U2720QDell UltraSharp U3219QDell U3421WE