Comparison between Dell P2421 vs Dell UltraSharp U3818DW

General Info
Model Number	Dell P2421	Dell UltraSharp U3818DW

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2017
Brand	Dell	Dell
Model Number	P2421	UltraSharp U3818DW
Display
Screen Size Class	24" (inches)	38" (inches)
Diagonal Size	24.06 in 61.1 cm 611 mm 2 ft	37.5 in 95.3 cm 952.5 mm 3.13 ft
Screen Width	20.41 in 51.8 cm 518.4 mm 1.7 ft	34.63 in 88 cm 879.67 mm 2.89 ft
Screen Height	12.76 in 32.4 cm 324 mm 1.06 ft	14.43 in 36.7 cm 366.53 mm 1.2 ft
Display Curvature		2300
Display Manufacturer		LG Display
Display Type	IPS	AH-IPS
Display Bit Depth	8 bits	10 bits
Frame Rate Control		No
Max Number of Colors	16777216	1073741824
Bits	24	30
Screen Aspect Ratio	16:10
Screen Resolution	1920 x 1200	3840 x 1600
Screen Pixel Pitch	0.27 mm	0.229 mm
Screen Pixel Density	94 ppi	111 ppi
Screen-to-Body Ratio	86.78 %	90.89 %
Backlight Source	W-LED	W-LED
DCI P3		78.1%
sRGB	99 %	99 %
Screen Brightness	300 cd/m²	350 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag		25 ms
Display Minimum Response Time	5 ms	5 ms
Display Average Response Time	8 ms	8 ms
Display Maximum Response Time		20 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D		No
Size, weight, color
Case Depth	1.74 in 4.4 cm 44.1 mm 0.14 ft	2.19 in 5.6 cm 55.5 mm 0.18 ft
Case Weight	3.5 kg 8 lbs	9.05 kg 20 lbs
Case Width with Stand	20.91 in 53.1 cm 531 mm 1.74 ft	35.2 in 89.4 cm 894 mm 2.93 ft
Case Height with Stand	14.6 in 37.1 cm 370.8 mm 1.22 ft	17.01 in 43.2 cm 432 mm 1.42 ft
Case Depth with Stand	6.54 in 16.6 cm 166 mm 0.54 ft	8.91 in 22.6 cm 226.4 mm 0.74 ft
Case Weight with Stand		12.14 kg 27 lbs
Case Color		Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.0 (upstream) 1 x HDMI 1.4 1 x DVI-D 1 x D-sub 1 x DisplayPort 1.2 2 x USB 2.0 (downstream) 2 x USB 3.0 (downstream)	2 x USB 3.0 (upstream) 2 x HDMI 2.0 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 4 x USB 3.0 (downstream) 1 x USB 3.0 (Type-C)
Audio
Audio Speakers		2 x 9W
Features
Cool Features	Flicker-free technology Low Blue Light	Picture-in-Picture HDCP (High-bandwidth Digital Content Protection) Picture-by-Picture
Extra Features	Security lock slot	Security lock slot
Ergonomics
Case Width	20.91 in 53.1 cm 531 mm 1.74 ft	35.2 in 89.4 cm 894 mm 2.93 ft
Case Height	14.35 in 36.5 cm 364.5 mm 1.2 ft	15.62 in 39.7 cm 396.8 mm 1.3 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	130 mm 13 cm 5.1181 in 0.4265 ft	115 mm 11.5 cm 4.5276 in 0.3773 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	90 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	45 °	30 °
Right Swivel	45 °	30 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	60 Hz
Screen Interpolation Measurement Unit	NULL
Accessories
Extras	DisplayPort cable D-Sub cable (Japan only)	DisplayPort cable Factory Calibration Report HDMI cable USB 3.0 upstream cable USB Type-C cable
Certificates and Standards
Licenses	ENERGY STAR EPEAT RoHS TCO Certified Display	CECP CEL ENERGY STAR RoHS Compliant TCO Certified Displays
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	20 % - 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	10 % - 90 %	5 % - 90 %
Max Operating Altitude	5000	5000
Max Storage Altitude	12192	12192

Dell P2421

Dell UltraSharp U3818DW