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

Brand, series, model

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

Dell U3421WEDell UltraSharp U3219QDell U2720Q
SeriesUltraSharpUltraSharpUltraSharp
Dell U3421WEDell UltraSharp U3219QDell U2720Q
Model aliasUltraSharp U3421WE-UltraSharp U2720Q
U2720QM
Model year202020182020

Display

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

Size class34.14 in31.5 in27 in
Diagonal867.2 mm
86.72 cm
34.1417 in
2.8451 ft
801 mm
80.1 cm
31.5354 in
2.628 ft
684.7 mm
68.47 cm
26.9567 in
2.2464 ft
Width799.8 mm
79.98 cm
31.4882 in
2.624 ft
697.31 mm
69.731 cm
27.4531 in
2.2878 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
Height334.8 mm
33.48 cm
13.1811 in
1.0984 ft
392.23 mm
39.223 cm
15.4421 in
1.2868 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
Radius of curvature1900 mm
190 cm
74.8031 in
6.2336 ft
--
Panel manufacturerLG DisplayLG Display-
Panel model-LM315WR1-????-
Panel typeAH-IPSIPSIPS
Panel bit depth10 bits10 bits (8 bits + FRC)10 bits (8 bits + FRC)
FRC-YesYes
Colors1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
Aspect ratio2.389:11.778:1
16:9
1.778:1
16:9
Resolution3440 x 1440 pixels3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
Pixel pitch0.233 mm
0.0233 cm
0.0092 in
0.0008 ft
0.182 mm
0.0182 cm
0.0071 in
0.0006 ft
0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
Pixel density109 ppi
43 ppcm
140 ppi
55 ppcm
163 ppi
64 ppcm
Display area-92.61 %92.04 %
BacklightW-LEDW-LEDW-LED
sRGB99 %99 %99 %
Adobe RGB (1998)-80 %89 %
DCI P395 %95 %95 %
Brightness300 cd/m²400 cd/m²350 cd/m²
Peak brightness--450 cd/m²
Static contrast1000 : 11300 : 11300 : 1
HDR-HDR10
DisplayHDR 400
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 lag-9 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)60 Hz60 Hz24 Hz - 75 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)3 A1.5 A2.5 A
Power consumption (off)0.5 W0.3 W0.3 W
Power consumption (sleep)0.5 W0.5 W0.3 W
Power consumption (average)36 W46 W33 W
Power consumption (maximum)210 W230 W200 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.

Width813.3 mm
81.33 cm
32.0197 in
2.6683 ft
712.5 mm
71.25 cm
28.0512 in
2.3376 ft
611.3 mm
61.13 cm
24.0669 in
2.0056 ft
Height-414.5 mm
41.45 cm
16.3189 in
1.3599 ft
356 mm
35.6 cm
14.0157 in
1.168 ft
Depth-44.5 mm
4.45 cm
1.752 in
0.146 ft
49.7 mm
4.97 cm
1.9567 in
0.1631 ft
Weight7.52 kg
16.58 lbs
5.8 kg
12.79 lbs
4.4 kg
9.7 lbs
Width with stand813.3 mm
81.33 cm
32.0197 in
2.6683 ft
610.9 mm
61.09 cm
24.0512 in
2.0043 ft
611.3 mm
61.13 cm
24.0669 in
2.0056 ft
Height with stand392.8 mm
39.28 cm
15.4646 in
1.2887 ft
452.7 mm
45.27 cm
17.8228 in
1.4852 ft
395.2 mm
39.52 cm
15.5591 in
1.2966 ft
Depth with stand237.4 mm
23.74 cm
9.3465 in
0.7789 ft
157.6 mm
15.76 cm
6.2047 in
0.5171 ft
185 mm
18.5 cm
7.2835 in
0.607 ft
Weight with stand11.87 kg
26.17 lbs
9.6 kg
21.16 lbs
6.6 kg
14.55 lbs
Box weight16.62 kg
36.64 lbs
-9.6 kg
21.16 lbs
ColorsPlatinum SilverBlackBlack

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 range150 mm
15 cm
5.9055 in
0.4921 ft
150 mm
15 cm
5.9055 in
0.4921 ft
130 mm
13 cm
5.1181 in
0.4265 ft
Landscape/portrait pivotNoYesYes
Left pivot-90 °90 °
Right pivot-90 °90 °
Left/right swivelYesYesYes
Left swivel30 °30 °45 °
Right swivel30 °30 °45 °
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.

Speakers2 x 5 W--

Camera

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

CameraNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity1 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
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
2 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
High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP) 2.2High-bandwidth Digital Content Protection (HDCP) 2.2

Features

Some additional functional features of the model.

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

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

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

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
HDMI cable
USB Type-A to Type-B cable
USB Type-C to Type-C cable
DisplayPort cable
USB Type-C cable
USB 3.0 upstream cable
DisplayPort cable (U2720Q)
HDMI cable (U2720QM)
USB Type-C to Type-C cable
USB Type-C to Type-A cable

Additional features

Information about other features.

Additional featuresSecurity lock slotSecurity lock slotSecurity lock slot
 Dell U3421WEDell UltraSharp U3219QDell U2720Q