Comparison between Dell U4021QW vs ViewSonic VP3481a

General Info
Model Number	Dell U4021QW	ViewSonic VP3481a

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2021	2020
Brand	Dell	ViewSonic
Model Number	U4021QW	VP3481a
Display
Screen Size Class	40" (inches)	34" (inches)
Diagonal Size		34 in 86.4 cm 863.6 mm 2.83 ft
Screen Width	37.27 in 94.7 cm 946.6 mm 3.11 ft	31.49 in 80 cm 799.8 mm 2.62 ft
Screen Height		13.18 in 33.5 cm 334.8 mm 1.1 ft
Display Curvature	2500	1800
Display Type	IPS	MVA
Display Bit Depth	10 bits	8 bits
Frame Rate Control		No
Lut		3D LUT 14 bits
Max Number of Colors	1073741824	16777216
Bits	30	24
Screen Aspect Ratio	21:9	21:9
Screen Resolution	5120 x 2160	3440 x 1440
Screen Pixel Pitch		0.233 mm
Screen Pixel Density		109 ppi
Screen-to-Body Ratio		90.44 %
Backlight Source	W-LED	W-LED
DCI P3	98%
sRGB	100 %	99 %
Screen Brightness	300 cd/m²	400 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Dynamic Screen Contrast		50000000 : 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
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR		HDR10
3D	No	No
Size, weight, color
Case Depth		4.13 in 10.5 cm 105 mm 0.34 ft
Case Weight		7.4 kg 16 lbs
Case Width with Stand	37.27 in 94.7 cm 946.6 mm 3.11 ft	31.85 in 80.9 cm 809 mm 2.65 ft
Case Height with Stand	18.02 in 45.8 cm 457.8 mm 1.5 ft	18.9 in 48 cm 480 mm 1.57 ft
Case Depth with Stand	9.76 in 24.8 cm 248 mm 0.81 ft	11.77 in 29.9 cm 299 mm 0.98 ft
Case Weight with Stand	9.5 kg 21 lbs	12.1 kg 27 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.2 (Type-C; downstream; 15W) 1 x Ethernet RJ45 (Gigabit) 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out (line-out for speakers) 1 x Thunderbolt 3.0 (Type-C; upstream; 90W; DP Alt Mode) 2 x HDMI 2.0 4 x USB 3.2 (Type-A; Gen 1; downstream) 1 x USB 3.2 (Type-B; Gen 1; upstream)	1 x USB 3.1 (Type-C; Gen 1; upstream; 90W) 1 x Ethernet RJ45 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out 2 x HDMI 2.0 2 x USB 2.0 (Type-A; downstream) 1 x USB 2.0 (Type-B; upstream)
Audio
Audio Speakers	2 x 9W	2 x 5W
Features
Cool Features	KVM Switch Low Blue Light Picture-in-Picture Picture-by-Picture ComfortView Plus Flicker-free technology	Low Blue Light AMD FreeSync technology Flicker-free technology
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width		31.85 in 80.9 cm 809 mm 2.65 ft
Case Height		14.41 in 36.6 cm 366 mm 1.2 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	120 mm 12 cm 4.7244 in 0.3937 ft	130 mm 13 cm 5.1181 in 0.4265 ft
Landscape or Portrait Pivot Support	No	No
Left or Right Swivel Support	Yes	Yes
Left Swivel	30 °	60 °
Right Swivel	30 °	60 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	6 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	24 Hz - 100 Hz
Horizontal Digital Frequency		15 kHz - 135 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	DisplayPort cable HDMI cable Thunderbolt 4 (USB-C) Active Cable USB Type-A to Type-B cable	Audio cable DisplayPort cable HDMI cable USB 3.1 Type-C cable USB 3.1 upstream cable
Certificates and Standards
Licenses		cTUVus Energy Star EPEAT FCC-B ICES003 MX-CoC Mexico Energy
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 % - 90 %
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	3048
Max Storage Altitude	12192	12192

Dell U4021QW

ViewSonic VP3481a