Comparison between Dell UltraSharp U3818DW vs Dell S3221QS

General Info
Model Number	Dell UltraSharp U3818DW	Dell S3221QS

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2017	2020
Brand	Dell	Dell
Model Number	UltraSharp U3818DW	S3221QS
Display
Screen Size Class	38" (inches)	32" (inches)
Diagonal Size	37.5 in 95.3 cm 952.5 mm 3.13 ft	31.5 in 80 cm 800.1 mm 2.63 ft
Screen Width	34.63 in 88 cm 879.67 mm 2.89 ft	27.45 in 69.7 cm 697.31 mm 2.29 ft
Screen Height	14.43 in 36.7 cm 366.53 mm 1.2 ft	15.44 in 39.2 cm 392.26 mm 1.29 ft
Display Curvature	2300	1800
Display Manufacturer	LG Display
Display Type	AH-IPS	VA
Display Bit Depth	10 bits	10 bits
Frame Rate Control	No
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio		16:9
Screen Resolution	3840 x 1600	3840 x 2160
Screen Pixel Pitch	0.229 mm	0.182 mm
Screen Pixel Density	111 ppi	140 ppi
Screen-to-Body Ratio	90.89 %	90.79 %
Backlight Source	W-LED	W-LED
DCI P3	78.1%	90%
sRGB	99 %	99 %
Adobe RGB 1998		80 %
Screen Brightness	350 cd/m²	300 cd/m²
Max Screen Brightness		370 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	25 ms
Display Minimum Response Time	5 ms	4 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	No
Size, weight, color
Case Depth	2.19 in 5.6 cm 55.5 mm 0.18 ft	2.52 in 6.4 cm 64 mm 0.21 ft
Case Weight	9.05 kg 20 lbs	7.4 kg 16 lbs
Case Width with Stand	35.2 in 89.4 cm 894 mm 2.93 ft	27.92 in 70.9 cm 709.2 mm 2.33 ft
Case Height with Stand	17.01 in 43.2 cm 432 mm 1.42 ft	17.64 in 44.8 cm 448.1 mm 1.47 ft
Case Depth with Stand	8.91 in 22.6 cm 226.4 mm 0.74 ft	8.15 in 20.7 cm 207 mm 0.68 ft
Case Weight with Stand	12.14 kg 27 lbs	10.9 kg 24 lbs
Case Color	Black	Silver
Hardware
Built-in Camera	No	No
Connectivity	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)	2 x HDMI 2.0 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out 2 x USB 3.0 (Type-A; downstream) 1 x USB 3.0 (Type-B; upstream)
Audio
Audio Speakers	2 x 9W	2 x 5W
Features
Cool Features	Picture-in-Picture HDCP (High-bandwidth Digital Content Protection) Picture-by-Picture	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	35.2 in 89.4 cm 894 mm 2.93 ft	27.92 in 70.9 cm 709.2 mm 2.33 ft
Case Height	15.62 in 39.7 cm 396.8 mm 1.3 ft	16.72 in 42.5 cm 424.8 mm 1.39 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	115 mm 11.5 cm 4.5276 in 0.3773 ft	70 mm 7 cm 2.7559 in 0.2297 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	60 Hz	40 Hz - 60 Hz
Horizontal Digital Frequency		29 kHz - 140 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	DisplayPort cable Factory Calibration Report HDMI cable USB 3.0 upstream cable USB Type-C cable	HDMI cable
Certificates and Standards
Licenses	CECP CEL ENERGY STAR RoHS Compliant TCO Certified Displays	ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light
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 UltraSharp U3818DW

Dell S3221QS