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Compare Dell P2423 vs Dell U2421E vs Dell U3023E

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 3.2 (Type-C; Gen 2; 10 Gbps upstream; 90W; Dp Alt Mode), 1x USB 3.2 (Type-C; Gen 2; upstream), 1x HDMI 1.4, 1x DisplayPort 1.4 (DSC), 1x DisplayPort 1.4 (out with MST), 1x Ethernet RJ45 (MAC Address pass-through; PXE Boot; Wake-on-LAN), 4x USB 3...

Construction

Adjustment | Height
150 mm / 5.9055 in
150 mm / 5.9055 in
150 mm / 5.9055 in
Adjustment | Pivot
-90° ~ 90°
-90° ~ 90°
-90° ~ 90°
Adjustment | Swivel
-45° ~ 45°
-45° ~ 45°
-30° ~ 30°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 21°
-5° ~ 21°
Camera
No
No
No
Colors
Black and Silver
Black
Black and Silver
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
93.61% 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
2.09 in / 53 mm w/o stand, 9.06 in / 230 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
16.48 in / 418.6 mm w/o stand, 18.61 in / 472.7 mm w/ stand
Size | Width
20.91 in / 531 mm
20.9 in / 530.8 mm
25.82 in / 655.9 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
6.48 kg / 14 lbs w/o stand , 11.13 kg / 24 lbs w/ stand

Display

Aspect Ratio
16:10
16:10
16:10
Brightness
300 nits
350 nits
350 nits
Contrast Ratio
1000:1 (static)
1000:1 (static)
1000:1 (static), 2000000:1 (dynamic)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
8 bits (6 bits + FRC), 16777216 colors
10 bits, 1073741824 colors
Display Diagonal
24" (24 in / 609.6 mm)
24" (24.06 in / 611 mm)
30" (29.77 in / 756.2 mm)
Display Type
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
IPS, Anti-glare/Matte (3H)
Gamut
99% sRGB
99% sRGB
95% DCI-P3, 100% sRGB
Pixel Density
94 ppi
94 ppi
101 ppi
Pixel Pitch
0.27 mm
0.275 mm
0.251 mm
Refresh Rate
56 Hz ~ 76 Hz
60 Hz
56 Hz ~ 76 Hz
Resolution
WUXGA (1920x1200)
WUXGA (1920x1200)
WQXGA (2560x1600)
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 Gold, RoHS, TCO Certified, TCO Edge, TUV Rheinland Low Blue Light Certified (Hardware Solution)
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
Display Stream Compression (DSC), Flicker-free technology, Low Blue Light, Picture-in-Picture, Picture-by-Picture, KVM Switch, ComfortView Plus, Dell Display Manager (DDM) Compatibility

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)
26.6 W (average) / 210 W (max) / 0.3 W (sleep) / 0.2 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 Gen 2 Type-A to Type-C cable, USB Gen 2 Type-C PD 3.0 cable
Debut
2022
2020
2022

Reviews

Neofiliac score
58%
56%
83%
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
  • Rich color reproduction
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • High 93.61 % screen-to-body ratio
  • USB-C hub
Cons
  • No publicized HDR support
  • 8-bit display panel
  • No publicized HDR support
  • 8-bit display panel
  • No publicized HDR support

Price

Offers (incl. referral links)
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