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Compare Dell P2423 vs Dell U2421E vs Dell U2421HE

Connectivity

Ports
1x HDMI 1.4, 1x DisplayPort 1.2, 1x D-sub, 1x DVI-I, 4x USB 3.2 (Type-A; Gen 1; 5 Gbps downstream), 1x USB 3.2 (Type-B; Gen 1; 5 Gbps upstream)
1x USB 3.2 (Type-C; Gen 1; upstream; 90W; DP Alt Mode), 1x Ethernet RJ45, 1x DisplayPort 1.4, 1x 3.5 mm Audio Out, 1x DisplayPort 1.4 (Output MST), 1x HDMI 1.4, 4x USB 3.2 (Type-A; Gen 1; downstream; 2x BC 1.2), 1x USB 3.2 (Type-C; Gen 1; downstream; 15W)
1x USB 3.1 (Type-C; upstream; DP; 65W), 1x Ethernet RJ45, 1x DisplayPort 1.4, 1x 3.5 mm Audio Out, 1x DisplayPort 1.4 (Output MST), 1x HDMI 1.4, 2x USB 3.0 (downstream), 2x USB 3.0 (downstream; BC 1.2)

Construction

Adjustment | Height
150 mm / 5.9055 in
150 mm / 5.9055 in
130 mm / 5.1181 in
Adjustment | Pivot
-90° ~ 90°
-90° ~ 90°
-90° ~ 90°
Adjustment | Swivel
-45° ~ 45°
-45° ~ 45°
-40° ~ 40°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 21°
-5° ~ 21°
Camera
No
No
No
Colors
Black and Silver
Black
Black
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
90.87% screen-to-body ratio
100.87% screen-to-body ratio
92.49% screen-to-body ratio
Size | Depth
2.1 in / 53.26 mm w/o stand, 7.07 in / 179.57 mm w/ stand
1.54 in / 39 mm w/o stand, 6.81 in / 173 mm w/ stand
1.54 in / 39 mm w/o stand, 6.5 in / 165 mm w/ stand
Size | Height
13.7 in / 348.1 mm w/o stand, 14.33 in / 364 mm w/ stand
12.35 in / 313.7 mm w/o stand, 14.33 in / 364 mm w/ stand
12.35 in / 313.7 mm w/o stand, 13.72 in / 348.4 mm w/ stand
Size | Width
20.91 in / 531 mm
20.9 in / 530.8 mm
21.2 in / 538.5 mm
Weight
3.53 kg / 8 lbs w/o stand , 5.56 kg / 12 lbs w/ stand
4 kg / 9 lbs w/o stand , 6.1 kg / 13 lbs w/ stand
3.37 kg / 7 lbs w/o stand , 5.32 kg / 12 lbs w/ stand

Display

Aspect Ratio
16:10
16:10
16:9
Brightness
300 nits
350 nits
250 nits
Contrast Ratio
1000:1 (static)
1000:1 (static)
1000:1 (static)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
8 bits (6 bits + FRC), 16777216 colors
8 bits, 16777216 colors
Display Diagonal
24" (24 in / 609.6 mm)
24" (24.06 in / 611 mm)
24" (23.81 in / 604.7 mm)
Display Type
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
Gamut
99% sRGB
99% sRGB
89% DCI-P3, 99% sRGB
Pixel Density
94 ppi
94 ppi
92 ppi
Pixel Pitch
0.27 mm
0.275 mm
0.275 mm
Refresh Rate
56 Hz ~ 76 Hz
60 Hz
56 Hz ~ 76 Hz
Resolution
WUXGA (1920x1200)
WUXGA (1920x1200)
FHD (1920x1080)
Response Time
5 ms (min) / 8 ms (avg)
5 ms (min) / 8 ms (avg)
5 ms (min) / 8 ms (avg)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

Licenses
EPEAT Gold, Energy Star, RoHS, TCO Certified Edge, TUV Rheinland Flicker-free Certified, TUV Rheinland Low Blue Light Certified (Hardware Solution)
ENERGY STAR, EPEAT Golf, TCO Certified, TUV Rheinland Low Blue Light Certified
ENERGY STAR, EPEAT, TCO Certified, RoHS, NFPA 99
Operating Humidity
10 % ~ 80 %
10 % ~ 80 %
10 % ~ 80 %
Operating Temperature
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
Video
Dell Display Manager, Flicker-free technology, On-Screen Display (OSD) menu, Low Blue Light, 3-side bezelless design, ComfortView Plus
Easy Arrange, Flicker-free technology, Low Blue Light, Infinity Edge design, ComfortView Plus, Dell Display Manager
Flicker-free technology, Low Blue Light

Performance

Power Consumption
14.8 W (average) / 48 W (max) / 12.85 W (eco) / 0.3 W (sleep) / 0.2 W (off)
30 W (average) / 186 W (max)
17.5 W (average) / 140 W (max) / 12.87 W (eco) / 0.3 W (sleep) / 0.3 W (off)

Production

Accessory
DisplayPort cable, USB Type-C cable, USB Type-A to Type-C cable
DisplayPort cable, USB Type-C to Type-A cable, USB Type-C to Type-C cable
DisplayPort cable, USB Type-C to Type-C cable
Debut
2022
2020
2020

Reviews

Neofiliac score
58%
56%
50%
Pros
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • High 90.87 % screen-to-body ratio
  • 16:10 aspect ratio
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • High 100.87 % screen-to-body ratio
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • High 92.49 % screen-to-body ratio
Cons
  • No publicized HDR support
  • 8-bit display panel
  • No publicized HDR support
  • 8-bit display panel
  • No publicized HDR support
  • 8-bit display panel
  • Display panel not very bright

Price

Offers (incl. referral links)
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