Comparison between:
- 34.14" Dell U3421WE
- 37.52" Dell U3821DW
- 31.5" Dell UltraSharp U3219Q
- 42.5" Dell U4320Q

Brand, series, model

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

Dell U3421WEDell U3821DWDell UltraSharp U3219QDell U4320Q
SeriesUltraSharpUltraSharpUltraSharpUltraSharp
Dell U3421WEDell U3821DWDell UltraSharp U3219QDell U4320Q
Model aliasUltraSharp U3421WE--UltraSharp U4320Q
Model year2020202120182020

Display

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

Size class34.14 in37.52 in31.5 in42.5 in
Diagonal867.2 mm
86.72 cm
34.1417 in
2.8451 ft
952.9 mm
95.29 cm
37.5157 in
3.1263 ft
801 mm
80.1 cm
31.5354 in
2.628 ft
1080 mm
108 cm
42.5197 in
3.5433 ft
Width799.8 mm
79.98 cm
31.4882 in
2.624 ft
890 mm
89 cm
35.0394 in
2.9199 ft
697.31 mm
69.731 cm
27.4531 in
2.2878 ft
941.184 mm
94.1184 cm
37.0545 in
3.0879 ft
Height334.8 mm
33.48 cm
13.1811 in
1.0984 ft
387.8 mm
38.78 cm
15.2677 in
1.2723 ft
392.23 mm
39.223 cm
15.4421 in
1.2868 ft
529.416 mm
52.9416 cm
20.8431 in
1.7369 ft
Radius of curvature1900 mm
190 cm
74.8031 in
6.2336 ft
2300 mm
230 cm
90.5512 in
7.5459 ft
--
Panel manufacturerLG Display-LG Display-
Panel model--LM315WR1-????-
Panel typeAH-IPSIPSIPSIPS
Panel bit depth10 bits10 bits10 bits (8 bits + FRC)10 bits (8 bits + FRC)
FRC--YesYes
Colors1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
Aspect ratio2.389:12.4:11.778:1
16:9
1.778:1
16:9
Resolution3440 x 1440 pixels3840 x 1600 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
0.229 mm
0.0229 cm
0.009 in
0.0008 ft
0.182 mm
0.0182 cm
0.0071 in
0.0006 ft
0.245 mm
0.0245 cm
0.0096 in
0.0008 ft
Pixel density109 ppi
43 ppcm
109 ppi
43 ppcm
140 ppi
55 ppcm
103 ppi
40 ppcm
Display area-98.38 %92.61 %91.28 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB99 %100 %99 %96 %
Adobe RGB (1998)--80 %-
DCI P395 %95 %95 %-
Brightness300 cd/m²300 cd/m²400 cd/m²350 cd/m²
Static contrast1000 : 11000 : 11300 : 11000 : 1
HDR--HDR10
DisplayHDR 400
-
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
5 ms
0.0050 s
Average response time8 ms
0.0080 s
8 ms
0.0080 s
8 ms
0.0080 s
8 ms
0.0080 s
Input lag--9 ms
0.0090 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 - 100 kHz--
Vertical frequency (digital)60 Hz56 Hz - 76 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 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)3 A3 A1.5 A3.3 A
Power consumption (off)0.5 W0.3 W0.3 W0.5 W
Power consumption (sleep)0.5 W0.3 W0.5 W0.5 W
Power consumption (average)36 W36.5 W46 W75 W
Power consumption (maximum)210 W230 W230 W260 W
Power consumption (annual)-105.47 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.

Width813.3 mm
81.33 cm
32.0197 in
2.6683 ft
894.3 mm
89.43 cm
35.2087 in
2.9341 ft
712.5 mm
71.25 cm
28.0512 in
2.3376 ft
967.2 mm
96.72 cm
38.0787 in
3.1732 ft
Height-392.3 mm
39.23 cm
15.4449 in
1.2871 ft
414.5 mm
41.45 cm
16.3189 in
1.3599 ft
564.4 mm
56.44 cm
22.2205 in
1.8517 ft
Depth-102.4 mm
10.24 cm
4.0315 in
0.336 ft
44.5 mm
4.45 cm
1.752 in
0.146 ft
59 mm
5.9 cm
2.3228 in
0.1936 ft
Weight7.52 kg
16.58 lbs
8.8 kg
19.4 lbs
5.8 kg
12.79 lbs
13.2 kg
29.1 lbs
Width with stand813.3 mm
81.33 cm
32.0197 in
2.6683 ft
894.3 mm
89.43 cm
35.2087 in
2.9341 ft
610.9 mm
61.09 cm
24.0512 in
2.0043 ft
967.2 mm
96.72 cm
38.0787 in
3.1732 ft
Height with stand392.8 mm
39.28 cm
15.4646 in
1.2887 ft
443.8 mm
44.38 cm
17.4724 in
1.456 ft
452.7 mm
45.27 cm
17.8228 in
1.4852 ft
595.2 mm
59.52 cm
23.4331 in
1.9528 ft
Depth with stand237.4 mm
23.74 cm
9.3465 in
0.7789 ft
251.2 mm
25.12 cm
9.8898 in
0.8241 ft
157.6 mm
15.76 cm
6.2047 in
0.5171 ft
249 mm
24.9 cm
9.8031 in
0.8169 ft
Weight with stand11.87 kg
26.17 lbs
13.6 kg
29.98 lbs
9.6 kg
21.16 lbs
17.6 kg
38.8 lbs
Box weight16.62 kg
36.64 lbs
19.9 kg
43.87 lbs
-25.6 kg
56.44 lbs
Stand width-385 mm
38.5 cm
15.1575 in
1.2631 ft
--
Stand height-318.3 mm
31.83 cm
12.5315 in
1.0443 ft
--
Stand depth-251.2 mm
25.12 cm
9.8898 in
0.8241 ft
--
ColorsPlatinum SilverBlackBlackBlack

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
100 x 200 mm
Removable standYesYesYesYes
Height adjustmentYesYesYesYes
Height adjustment range150 mm
15 cm
5.9055 in
0.4921 ft
120 mm
12 cm
4.7244 in
0.3937 ft
150 mm
15 cm
5.9055 in
0.4921 ft
60 mm
6 cm
2.3622 in
0.1969 ft
Landscape/portrait pivotNoNoYesNo
Left pivot--90 °-
Right pivot--90 °-
Left/right swivelYesYesYesYes
Left swivel30 °30 °30 °20 °
Right swivel30 °30 °30 °20 °
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt21 °21 °21 °10 °

Audio

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

Speakers2 x 5 W2 x 9 W--

Camera

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

CameraNoNoNoNo

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
1 x USB 3.2 (Type-B; Gen 1; upstream)
1 x USB 3.2 (Type-C; downstream)
1 x USB 3.2 (Type-C; upstream; 90W; DP Alt Mode)
4 x USB 3.2 (Type-A; Gen 1; downstream)
1 x Ethernet RJ45
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x 3.5 mm Audio Out (line-out for speakers)
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 3.0 (BC charging 2A)
2 x USB 3.0 (Type-A; downstream)
1 x USB 3.0 (Type-C; 90W; DisplayPort)
1 x USB 3.0 (Type-C; downstream; 15W)
2 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)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
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
Picture-by-Picture
Picture-in-Picture

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
ENERGY STAR 8.0
EPEAT Gold
RoHS
TAA Availability
TCO Certified Displays
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

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 % - 90 %
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
HDMI cable
USB Type-A to Type-B cable
USB Type-C to Type-C cable
DisplayPort cable
HDMI cable
USB Type-C cable
USB Type-B 3.2 Gen 1 cable
DisplayPort cable
USB Type-C cable
USB 3.0 upstream cable
DisplayPort cable
HDMI cable
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 slotSecurity lock slot
 Dell U3421WEDell U3821DWDell UltraSharp U3219QDell U4320Q