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Compare Dell U2421E vs Dell UltraSharp U4919DW vs Dell U2720Q

Connectivity

Ports
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)
2x USB 3.0 upstream + 5x USB 3.0 downstream + 1x USB-C (DP 1.4) + 1x DisplayPort 1.4 + 2x HDMI 2.0 + 1x Headphone
1x USB 3.0 (Type-C; 90W; DisplayPort), 1x USB 3.0 (Type-C; downstream; 15W), 1x DisplayPort 1.4, 1x 3.5 mm Audio Out, 1x HDMI 2.0 (CEC), 1x USB 3.0 (downstream; BC 1.2 charging at 2A), 2x USB 3.0 (Type-A; downstream)

Construction

Adjustment | Height
150 mm / 5.9055 in
130 mm / 5.1181 in
Adjustment | Pivot
-90° ~ 90°
-90° ~ 90°
Adjustment | Swivel
-45° ~ 45°
-170° ~ 170°
-45° ~ 45°
Adjustment | Tilt
-5° ~ 21°
-5° ~ 21°
-5° ~ 21°
Camera
No
No
Colors
Black
Black
Form Factor
Curved professional monitor
VESA Mount
100 x 100 mm
100x100 mm
100 x 100 mm

Dimensions

Bezels
100.87% screen-to-body ratio
92.04% screen-to-body ratio
Size | Depth
1.54 in / 39 mm w/o stand, 6.81 in / 173 mm w/ stand
4.3 inch w/o stand
1.96 in / 49.7 mm w/o stand, 7.28 in / 185 mm w/ stand
Size | Height
12.35 in / 313.7 mm w/o stand, 14.33 in / 364 mm w/ stand
14.6 inch w/o stand
14.02 in / 356 mm w/o stand, 15.56 in / 395.2 mm w/ stand
Size | Width
20.9 in / 530.8 mm
47.8 inch
24.07 in / 611.3 mm
Weight
4 kg / 9 lbs w/o stand , 6.1 kg / 13 lbs w/ stand
29.1 lbs
4.4 kg / 10 lbs w/o stand , 6.6 kg / 15 lbs w/ stand

Display

Aspect Ratio
16:10
32:9
16:9
Brightness
350 nits
350 nits
350 nits
Contrast Ratio
1000:1 (static)
1000:1
1300:1 (static)
Display Backlight
W-LED
W-LED
Display Color Depth
8 bits (6 bits + FRC), 16777216 colors
1.07 billion (10-bit)
10 bits (8 bits + FRC), 1073741824 colors
Display Curvature
3800R
Display Diagonal
24" (24.06 in / 611 mm)
49 inch
27" (26.96 in / 684.7 mm)
Display Type
IPS, Anti-glare/Matte (3H)
IPS
IPS, Anti-glare/Matte (3H)
Gamut
99% sRGB
99% sRGB
95% DCI-P3, 99% sRGB
Pixel Density
94 ppi
109 ppi
163 ppi
Pixel Pitch
0.275 mm
0.234 mm
0.155 mm
Refresh Rate
60 Hz
60 Hz
60 Hz
Resolution
WUXGA (1920x1200)
5120x1440
4K (3840x2160)
Response Time
5 ms (min) / 8 ms (avg)
5 ms gray to gray in Fast mode, 8 ms gray to gray in Normal mode
5 ms (min) / 8 ms (avg)
Viewing Angle
178° H / 178° V
178 degree
178° H / 178° V

Function

HDR
DisplayHDR 400
Licenses
ENERGY STAR, EPEAT Golf, TCO Certified, TUV Rheinland Low Blue Light Certified
BFR-free, CEL, ENERGY STAR 6.0, EPEAT, Mercury-free, NFPA 99, PVC-free, RoHS Compliant, TCO
Operating Humidity
10 % ~ 80 %
10 % ~ 80 %
Operating Temperature
0 °C ~ 40 °C , 32 °F ~ 104 °F
0° to 40°C
0 °C ~ 40 °C , 32 °F ~ 104 °F
Video
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
30 W (average) / 186 W (max)
60 W (typical) / 230 W (max)
33 W (average) / 200 W (max) / 0.3 W (sleep) / 0.3 W (off)
Power Supply
90W Power Delivery via USB-C

Production

Accessory
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, USB Type-C to Type-A cable
Debut
2020
2019
2020

Reviews

Neofiliac score
56%
90%
Pros
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • High 100.87 % screen-to-body ratio
  • Bright, high-contrast IPS panel
  • Bright, contrast-rich panel
  • Wide viewing angles
  • DisplayHDR 400
  • Rich color reproduction
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1300:1 contrast ratio
  • 10-bit display panel
  • High 92.04 % screen-to-body ratio
  • Integrated USB-C hub
Cons
  • No publicized HDR support
  • 8-bit display panel
  • Mediocre color accuracy

Price

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