Comparison between:
- 23.8" Dell P2421D
- 23.8" Dell P2421DC
- 23.8" Dell E2420H
- 23.8" Dell SE2419HR

Brand, series, model

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

Dell P2421DDell P2421DCDell E2420HDell SE2419HR
Dell P2421DDell P2421DCDell E2420HDell SE2419HR

Display

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

Size class23.8 in23.8 in23.8 in23.8 in
Diagonal604 mm
60.4 cm
23.7795 in
1.9816 ft
604 mm
60.4 cm
23.7795 in
1.9816 ft
604.7 mm
60.47 cm
23.8071 in
1.9839 ft
604 mm
60.4 cm
23.7795 in
1.9816 ft
Width526.85 mm
52.685 cm
20.7421 in
1.7285 ft
526.85 mm
52.685 cm
20.7421 in
1.7285 ft
527.04 mm
52.704 cm
20.7496 in
1.7291 ft
527.04 mm
52.704 cm
20.7496 in
1.7291 ft
Height296.35 mm
29.635 cm
11.6673 in
0.9723 ft
296.35 mm
29.635 cm
11.6673 in
0.9723 ft
296.46 mm
29.646 cm
11.6717 in
0.9726 ft
296.46 mm
29.646 cm
11.6717 in
0.9726 ft
Panel typeIPSIPSIPSIPS
Panel bit depth8 bits (6 bits + FRC)8 bits (6 bits + FRC)8 bits8 bits (6 bits + FRC)
FRCYesYes-Yes
Colors16777216 colors
24 bits
16777216 colors
24 bits
16777216 colors
24 bits
16777216 colors
24 bits
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution2560 x 1440 pixels
Quad HD (QHD) / 1440p
2560 x 1440 pixels
Quad HD (QHD) / 1440p
1920 x 1080 pixels
Full HD / 1080p
1920 x 1080 pixels
Full HD / 1080p
Pixel pitch0.206 mm
0.0206 cm
0.0081 in
0.0007 ft
0.206 mm
0.0206 cm
0.0081 in
0.0007 ft
0.275 mm
0.0275 cm
0.0108 in
0.0009 ft
0.275 mm
0.0275 cm
0.0108 in
0.0009 ft
Pixel density123 ppi
48 ppcm
123 ppi
48 ppcm
92 ppi
36 ppcm
92 ppi
36 ppcm
Display area90.13 %90.13 %-89.65 %
BacklightW-LEDW-LEDW-LEDW-LED
sRGB99 %99 %--
NTSC (1953)--72 %72 %
Brightness300 cd/m²300 cd/m²250 cd/m²250 cd/m²
Static contrast1000 : 11000 : 11000 : 11000 : 1
Dynamic contrast---80000000 : 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
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
CoatingAnti-glare/Matte (3H)Anti-glare/Matte (3H)Anti-glare/MatteAnti-glare/Matte (3H)

3D

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

3D--NoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)---30 kHz - 83 kHz
Vertical frequency (digital)60 Hz60 Hz60 Hz48 Hz - 76 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)2.5 A2.5 A0.8 A1.5 A
Power consumption (off)0.3 W0.3 W0.3 W0.3 W
Power consumption (sleep)0.3 W0.3 W0.5 W0.5 W
Power consumption (eco)--14.36 W-
Power consumption (average)25 W25 W15 W17 W
Power consumption (maximum)55 W127 W22 W22 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.

Width537.8 mm
53.78 cm
21.1732 in
1.7644 ft
537.8 mm
53.78 cm
21.1732 in
1.7644 ft
550.672 mm
55.0672 cm
21.68 in
1.8067 ft
539.4 mm
53.94 cm
21.2362 in
1.7697 ft
Height322.1 mm
32.21 cm
12.6811 in
1.0568 ft
322.1 mm
32.21 cm
12.6811 in
1.0568 ft
-323.1 mm
32.31 cm
12.7205 in
1.06 ft
Depth42.7 mm
4.27 cm
1.6811 in
0.1401 ft
42.7 mm
4.27 cm
1.6811 in
0.1401 ft
-46.4 mm
4.64 cm
1.8268 in
0.1522 ft
Weight3.37 kg
7.43 lbs
3.77 kg
8.31 lbs
3.25 kg
7.17 lbs
3.65 kg
8.05 lbs
Width with stand537.8 mm
53.78 cm
21.1732 in
1.7644 ft
537.8 mm
53.78 cm
21.1732 in
1.7644 ft
550.672 mm
55.0672 cm
21.68 in
1.8067 ft
539.4 mm
53.94 cm
21.2362 in
1.7697 ft
Height with stand356.1 mm
35.61 cm
14.0197 in
1.1683 ft
356.1 mm
35.61 cm
14.0197 in
1.1683 ft
419.61 mm
41.961 cm
16.5201 in
1.3767 ft
413.6 mm
41.36 cm
16.2835 in
1.357 ft
Depth with stand166 mm
16.6 cm
6.5354 in
0.5446 ft
166 mm
16.6 cm
6.5354 in
0.5446 ft
170.942 mm
17.0942 cm
6.73 in
0.5608 ft
152.8 mm
15.28 cm
6.0157 in
0.5013 ft
Weight with stand--4.27 kg
9.41 lbs
4.17 kg
9.19 lbs
Colors--BlackBlack

Ergonomics

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

VESA mountYesYesYesNo
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm-
Removable standYesYesYesYes
Height adjustmentYesYesNoNo
Height adjustment range130 mm
13 cm
5.1181 in
0.4265 ft
130 mm
13 cm
5.1181 in
0.4265 ft
--
Landscape/portrait pivotYesYesNoNo
Left pivot90 °90 °--
Right pivot90 °90 °--
Left/right swivelYesYesNoNo
Left swivel45 °45 °--
Right swivel45 °45 °--
Forward/backward tiltYesYesYesYes
Forward tilt5 °5 °5 °5 °
Backward tilt21 °21 °21 °21 °

Camera

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

CameraNoNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity2 x USB 2.0 (downstream)
2 x USB 3.0 (downstream)
1 x USB 3.0 (upstream)
1 x HDMI 1.4
1 x DisplayPort 1.2
1 x USB (Type-C; 65W)
2 x USB 2.0 (downstream)
2 x USB 3.0 (downstream)
1 x HDMI 1.4
1 x DisplayPort 1.2 (out)
1 x DisplayPort 1.2 (in)
1 x DisplayPort 1.2
1 x D-sub
1 x HDMI 1.4
1 x D-sub
--High-bandwidth Digital Content Protection (HDCP) 1.2High-bandwidth Digital Content Protection (HDCP)

Features

Some additional functional features of the model.

FeaturesFlicker-free technology
Low Blue Light
Daisy Chain Availability
Flicker-free technology
Low Blue Light
Dell Display Manager
Flicker-free technology
Low Blue Light
PowerNap
AMD FreeSync technology
Blue Light Filter
Flicker-free technology

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesENERGY STAR
EPEAT
RoHS
TCO Certified Display
ENERGY STAR
EPEAT
RoHS
TCO Certified Display
Energy Star
EPEAT
TCO Certified Display
ENERGY STAR 7.0
RoHS
TCO Certified Displays

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 % - 90 %10 % - 90 %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 humidity10 % - 90 %10 % - 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-C cable
DisplayPort cable
USB 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 slotSecurity lock slot
 Dell P2421DDell P2421DCDell E2420HDell SE2419HR