Comparison between:
- 49" Dell UltraSharp U4919DW
- 34" LG 34WK95U
- 37.52" Dell U3821DW
- 27" Dell U2720Q

Brand, series, model

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

Dell UltraSharp U4919DWLG 34WK95UDell U3821DWDell U2720Q
SeriesUltraSharp-UltraSharpUltraSharp
Dell UltraSharp U4919DWLG 34WK95UDell U3821DWDell U2720Q
Model alias---UltraSharp U2720Q
U2720QM
Model year2018201820212020

Display

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

Size class49 in34 in37.52 in27 in
Diagonal1244.6 mm
124.46 cm
49 in
4.0833 ft
863.6 mm
86.36 cm
34 in
2.8333 ft
952.9 mm
95.29 cm
37.5157 in
3.1263 ft
684.7 mm
68.47 cm
26.9567 in
2.2464 ft
Width1198.08 mm
119.808 cm
47.1685 in
3.9307 ft
793.77 mm
79.377 cm
31.2508 in
2.6042 ft
890 mm
89 cm
35.0394 in
2.9199 ft
596.736 mm
59.6736 cm
23.4935 in
1.9578 ft
Height336.96 mm
33.696 cm
13.2661 in
1.1055 ft
340.19 mm
34.019 cm
13.3933 in
1.1161 ft
387.8 mm
38.78 cm
15.2677 in
1.2723 ft
335.664 mm
33.5664 cm
13.2151 in
1.1013 ft
Radius of curvature3800 mm
380 cm
149.606 in
12.4672 ft
-2300 mm
230 cm
90.5512 in
7.5459 ft
-
Panel manufacturerLG DisplayLG Display--
Panel modelLM490DQ1-????---
Panel typeIPSAH-IPSIPSIPS
Panel bit depth10 bits10 bits (8 bits + FRC)10 bits10 bits (8 bits + FRC)
FRCNoYes-Yes
Colors1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
1073741824 colors
30 bits
Aspect ratio3.556:12.37:12.4:11.778:1
16:9
Resolution5120 x 1440 pixels5120 x 2160 pixels3840 x 1600 pixels3840 x 2160 pixels
Ultra HD (UHD) / 4K / 2160p
Pixel pitch0.234 mm
0.0234 cm
0.0092 in
0.0008 ft
0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
0.229 mm
0.0229 cm
0.009 in
0.0008 ft
0.155 mm
0.0155 cm
0.0061 in
0.0005 ft
Pixel density108 ppi
42 ppcm
164 ppi
64 ppcm
109 ppi
43 ppcm
163 ppi
64 ppcm
Display area89.55 %91.87 %98.38 %92.04 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB99 %99 %100 %99 %
Adobe RGB (1998)75 %85 %-89 %
NTSC (1953)72 %---
DCI P3-98 %95 %95 %
Rec. 2020-70 %--
Brightness350 cd/m²450 cd/m²300 cd/m²350 cd/m²
Peak brightness-700 cd/m²-450 cd/m²
Static contrast1000 : 11200 : 11000 : 11300 : 1
HDR-DisplayHDR 600-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
14 ms
0.0140 s
8 ms
0.0080 s
8 ms
0.0080 s
Maximum response time15 ms
0.0150 s
---
Input lag10 ms
0.0100 s
10 ms
0.0100 s
-9 ms
0.0090 s
CoatingAnti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/Matte (3H)
CIE1976 - 90%
CIE1931 - 75%
---

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)25 kHz - 115 kHz30 kHz - 135 kHz30 kHz - 100 kHz30 kHz - 140 kHz
Vertical frequency (digital)24 Hz - 86 Hz48 Hz - 61 Hz56 Hz - 76 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 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 A-3 A2.5 A
Power consumption (off)0.3 W0.3 W0.3 W0.3 W
Power consumption (sleep)0.5 W1.2 W0.3 W0.3 W
Power consumption (average)60 W54.78 W36.5 W33 W
Power consumption (maximum)230 W80 W230 W200 W
Power consumption (annual)--105.47 kWh-
Energy efficiency class-B--

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.

Width1215.1 mm
121.51 cm
47.8386 in
3.9865 ft
816.9 mm
81.69 cm
32.1614 in
2.6801 ft
894.3 mm
89.43 cm
35.2087 in
2.9341 ft
611.3 mm
61.13 cm
24.0669 in
2.0056 ft
Height371 mm
37.1 cm
14.6063 in
1.2172 ft
359.8 mm
35.98 cm
14.1654 in
1.1804 ft
392.3 mm
39.23 cm
15.4449 in
1.2871 ft
356 mm
35.6 cm
14.0157 in
1.168 ft
Depth109.3 mm
10.93 cm
4.3031 in
0.3586 ft
57.1 mm
5.71 cm
2.248 in
0.1873 ft
102.4 mm
10.24 cm
4.0315 in
0.336 ft
49.7 mm
4.97 cm
1.9567 in
0.1631 ft
Weight11.4 kg
25.13 lbs
7.5 kg
16.53 lbs
8.8 kg
19.4 lbs
4.4 kg
9.7 lbs
Width with stand1215.1 mm
121.51 cm
47.8386 in
3.9865 ft
816.9 mm
81.69 cm
32.1614 in
2.6801 ft
894.3 mm
89.43 cm
35.2087 in
2.9341 ft
611.3 mm
61.13 cm
24.0669 in
2.0056 ft
Height with stand458.6 mm
45.86 cm
18.0551 in
1.5046 ft
449 mm
44.9 cm
17.6772 in
1.4731 ft
443.8 mm
44.38 cm
17.4724 in
1.456 ft
395.2 mm
39.52 cm
15.5591 in
1.2966 ft
Depth with stand252.6 mm
25.26 cm
9.9449 in
0.8287 ft
234.3 mm
23.43 cm
9.2244 in
0.7687 ft
251.2 mm
25.12 cm
9.8898 in
0.8241 ft
185 mm
18.5 cm
7.2835 in
0.607 ft
Weight with stand17.2 kg
37.92 lbs
8.8 kg
19.4 lbs
13.6 kg
29.98 lbs
6.6 kg
14.55 lbs
Box weight--19.9 kg
43.87 lbs
9.6 kg
21.16 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
-
ColorsBlackBlack
Gray
BlackBlack

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 adjustmentYesYesYesYes
Height adjustment range130 mm
13 cm
5.1181 in
0.4265 ft
110 mm
11 cm
4.3307 in
0.3609 ft
120 mm
12 cm
4.7244 in
0.3937 ft
130 mm
13 cm
5.1181 in
0.4265 ft
Landscape/portrait pivotNoNoNoYes
Left pivot---90 °
Right pivot---90 °
Left/right swivelYesNoYesYes
Left swivel170 °-30 °45 °
Right swivel170 °-30 °45 °
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt21 °15 °21 °21 °

Audio

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

Speakers-2 x 5 W2 x 9 W-
-Rich Bass--

Camera

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

CameraNoNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity1 x USB 3.0 (charger - 5V/2.0A)
4 x USB 3.0 (downstream)
2 x USB 3.0 (upstream)
1 x USB 3.1 (Type-C)
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x USB (Type-C via Thunderbolt 3)
2 x USB 3.0 (downstream)
1 x USB 3.0 (upstream)
2 x HDMI 2.0
1 x DisplayPort 1.4
1 x Thunderbolt 3.0
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)
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) 2.2High-bandwidth Digital Content Protection (HDCP) 2.2High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP) 2.2

Features

Some additional functional features of the model.

FeaturesBlue Light Filter
Flicker-free technology
Picture-by-Picture
6-Axis Control
DDC/CI
Dynamic Action Sync
Local Dimming
Nano IPS
Picture-by-Picture
Picture-in-Picture
Screen Split 2.0
Super Resolution+
True Color Pro
Flicker-free technology
KVM Switch
Low Blue Light
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 7.0
RoHS
TCO Certified Displays
BSMI
CCC
CE
cTick
ENERGY STAR 7.0
ErP
FCC Class B
UL/cUL
ENERGY STAR 8.0
EPEAT Gold
RoHS
TAA Availability
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
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
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 % - 85 %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 3.0 upstream cable
USB Type-C cable
DisplayPort cable
Thunderbolt cable
USB 3.0 upstream cable
DisplayPort cable
HDMI cable
USB Type-C cable
USB Type-B 3.2 Gen 1 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 slotAnti-theft stand lock slotSecurity lock slotSecurity lock slot
 Dell UltraSharp U4919DWLG 34WK95UDell U3821DWDell U2720Q