Comparison between Dell U2421E vs Dell U2722DE

General Info
Model Number	Dell U2421E	Dell U2722DE

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2021
Brand	Dell	Dell
Model Series		UltraSharp
Model Number	U2421E	U2722DE
Display
Screen Size Class	24" (inches)	27" (inches)
Diagonal Size	24.06 in 61.1 cm 611 mm 2 ft	26.96 in 68.5 cm 684.7 mm 2.25 ft
Screen Width	20.41 in 51.8 cm 518.4 mm 1.7 ft	23.49 in 59.7 cm 596.736 mm 1.96 ft
Screen Height	12.76 in 32.4 cm 324 mm 1.06 ft	13.22 in 33.6 cm 335.664 mm 1.1 ft
Display Type	IPS	IPS
Display Bit Depth	8 bits (6 bits + FRC)	10 bits
Frame Rate Control	Yes
Max Number of Colors	16777216	1073741824
Bits	24	30
Screen Aspect Ratio	16:10	16:9
Screen Resolution	1920 x 1200	2560 x 1440
Screen Pixel Pitch	0.275 mm	0.233 mm
Screen Pixel Density	94 ppi	109 ppi
Screen-to-Body Ratio	100.87 %	93.08 %
Backlight Source	W-LED	W-LED
DCI P3		95%
sRGB	99 %	100 %
Screen Brightness	350 cd/m²	350 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	5 ms	5 ms
Display Average Response Time	8 ms	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	1.54 in 3.9 cm 39 mm 0.13 ft	1.95 in 5 cm 49.5 mm 0.16 ft
Case Weight	4 kg 9 lbs	4.78 kg 11 lbs
Case Width with Stand	20.9 in 53.1 cm 530.8 mm 1.74 ft	24.07 in 61.1 cm 611.34 mm 2.01 ft
Case Height with Stand	14.33 in 36.4 cm 364 mm 1.19 ft	15.16 in 38.5 cm 385.13 mm 1.26 ft
Case Depth with Stand	6.81 in 17.3 cm 173 mm 0.57 ft	7.28 in 18.5 cm 185 mm 0.61 ft
Case Weight with Stand	6.1 kg 13 lbs	7.02 kg 15 lbs
Case Color	Black	Black and silver
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.2 (Type-C; Gen 1; upstream; 90W; DP Alt Mode) 1 x Ethernet RJ45 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out 1 x DisplayPort 1.4 (Output MST) 1 x HDMI 1.4 4 x USB 3.2 (Type-A; Gen 1; downstream; 2x BC 1.2) 1 x USB 3.2 (Type-C; Gen 1; downstream; 15W)	1 x USB 3.2 (Type-C; DP 1.4; PD 90W) 1 x USB 3.2 (Type-C; PD 15W) 1 x Ethernet RJ45 1 x DisplayPort 1.4 1 x HDMI 1.4 1 x USB 3.2 (Type-C; upstream) 3 x USB 3.2 (Type-A) 1 x DisplayPort 1.4 (Output MST) 1 x USB 3.2 (Type-A; BC 1.2) 1 x 3.5 mm Audio Out
Audio
Features
Cool Features	Easy Arrange Flicker-free technology Low Blue Light Infinity Edge design ComfortView Plus Dell Display Manager	Low Blue Light Dell ComfortView Plus Flicker-free technology
Extra Features	Security lock slot	Security lock slot
Ergonomics
Case Width	20.9 in 53.1 cm 530.8 mm 1.74 ft	24.07 in 61.1 cm 611.34 mm 2.01 ft
Case Height	12.35 in 31.4 cm 313.7 mm 1.03 ft	13.86 in 35.2 cm 352.01 mm 1.15 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	100 x 100	100 x 100
Removable VESA Stand	Yes	Yes
Height Adjustment	Yes	Yes
Height Adjustment Range	150 mm 15 cm 5.9055 in 0.4921 ft	150 mm 15 cm 5.9055 in 0.4921 ft
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	90 °	90 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	45 °	45 °
Right Swivel	45 °	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	56 Hz - 60 Hz
Horizontal Digital Frequency	30 kHz - 83 kHz	31.47 kHz - 88.79 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	DisplayPort cable USB Type-C to Type-A cable USB Type-C to Type-C cable	DisplayPort cable USB Type-C to Type-A cable USB Type-C to Type-C cable
Certificates and Standards
Licenses	ENERGY STAR EPEAT Golf TCO Certified TUV Rheinland Low Blue Light Certified	ENERGY STAR EPEAT Gold TCO Certified Edge Display RoHS NFPA 99
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 40 °C 32 °F - 104 °F	0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level	10 % - 80 %	10 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	5 % - 90 %	5 % - 90 %
Max Operating Altitude	5000	5000
Max Storage Altitude	12192	12192

Dell U2421E

Dell U2722DE