Comparison between Dell U3821DW vs Dell S2718H

General Info
Model Number	Dell U3821DW	Dell S2718H

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Type	Monitor	Monitor
Year	2021	2017
Brand	Dell	Dell
Model Series	UltraSharp
Model Number	U3821DW	S2718H
Display
Screen Size Class	38" (inches)	27" (inches)
Diagonal Size	37.52 in 95.3 cm 952.9 mm 3.13 ft	27 in 68.6 cm 685.8 mm 2.25 ft
Screen Width	35.04 in 89 cm 890 mm 2.92 ft	23.54 in 59.8 cm 597.89 mm 1.96 ft
Screen Height	15.27 in 38.8 cm 387.8 mm 1.27 ft	13.24 in 33.6 cm 336.31 mm 1.1 ft
Display Curvature	2300
Display Type	IPS	IPS
Display Bit Depth	10 bits	8 bits (6 bits + FRC)
Frame Rate Control		Yes
Max Number of Colors	1073741824	16777216
Bits	30	24
Screen Aspect Ratio	24:10	16:9
Screen Resolution	3840 x 1600	1920 x 1080
Screen Pixel Pitch	0.229 mm	0.311 mm
Screen Pixel Density	109 ppi	81 ppi
Screen-to-Body Ratio	98.38 %	92.06 %
Backlight Source	W-LED	W-LED
DCI P3	95%
sRGB	100 %	99 %
NTSC 1953		72 %
Screen Brightness	300 cd/m²	250 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast		8000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	5 ms	6 ms
Display Average Response Time	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR	DisplayHDR 600	HDR10
3D	No	No
Size, weight, color
Case Depth	4.03 in 10.2 cm 102.4 mm 0.34 ft	1.74 in 4.4 cm 44.2 mm 0.15 ft
Case Weight	8.8 kg 19 lbs	3.79 kg 8 lbs
Case Width with Stand	35.21 in 89.4 cm 894.3 mm 2.93 ft	24.12 in 61.3 cm 612.7 mm 2.01 ft
Case Height with Stand	17.47 in 44.4 cm 443.8 mm 1.46 ft	17.86 in 45.4 cm 453.6 mm 1.49 ft
Case Depth with Stand	9.89 in 25.1 cm 251.2 mm 0.82 ft	6.39 in 16.2 cm 162.2 mm 0.53 ft
Case Weight with Stand	13.6 kg 30 lbs	4.98 kg 11 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.2 (Type-C; upstream; 90W; DP Alt Mode) 4 x USB 3.2 (Type-A; Gen 1; downstream) 2 x HDMI 2.0 1 x 3.5 mm Audio Out (line-out for speakers) 1 x DisplayPort 1.4 1 x Ethernet RJ45 1 x USB 3.2 (Type-B; Gen 1; upstream) 1 x USB 3.2 (Type-C; downstream)	1 x 3.5 mm Audio In 1 x 3.5 mm Audio Out 1 x HDMI 2.0 1 x D-sub
Audio
Audio Speakers	2 x 9W	1 x 6W
Features
Cool Features	Low Blue Light Picture-by-Picture Picture-in-Picture Flicker-free technology KVM Switch	Low Blue Light AMD FreeSync technology Flicker-free technology
Extra Features	Security lock slot	Security lock slot
Ergonomics
Case Width	35.21 in 89.4 cm 894.3 mm 2.93 ft	24.12 in 61.3 cm 612.7 mm 2.01 ft
Case Height	15.44 in 39.2 cm 392.3 mm 1.29 ft	14.04 in 35.7 cm 356.5 mm 1.17 ft
Vesa Mount Support	Yes	No
VESA Interface Standard Size	100 x 100	75 x 75
Removable VESA Stand	Yes	Yes
Height Adjustment	Yes	No
Height Adjustment Range	120 mm 12 cm 4.7244 in 0.3937 ft
Landscape or Portrait Pivot Support	No	No
Left or Right Swivel Support	Yes	No
Left Swivel	30 °
Right Swivel	30 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	56 Hz - 76 Hz	48 Hz - 75 Hz
Horizontal Digital Frequency	30 kHz - 100 kHz	31 kHz - 140 kHz
Screen Interpolation Measurement Unit	NULL
Accessories
Extras	DisplayPort cable HDMI cable USB Type-C cable USB Type-B 3.2 Gen 1 cable	D-sub cable HDMI cable
Certificates and Standards
Licenses	ENERGY STAR 8.0 EPEAT Gold RoHS TAA Availability TCO Certified Displays	CECP CEL ENERGY STAR 6.0 ErP RoHS Compliant TCO Certified Displays WEEE
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 U3821DW

Dell S2718H