Comparison between Dell U4021QW vs Lenovo ThinkVision T34w-20

General Info
Model Number	Dell U4021QW	Lenovo ThinkVision T34w-20

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2021	2020
Brand	Dell	Lenovo
Model Number	U4021QW	ThinkVision T34w-20
Alias		61F3GAR1EU 61F3GAR1US 61F3GAR1UK
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	31.39 in 79.7 cm 797.184 mm 2.62 ft
Screen Height		13.14 in 33.4 cm 333.72 mm 1.09 ft
Display Curvature	2500	1500
Display Type	IPS	VA
Display Bit Depth	10 bits	8 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		0.232 mm
Screen Pixel Density		109 ppi
Screen-to-Body Ratio		88.3 %
Backlight Source	W-LED	W-LED
DCI P3	98%
sRGB	100 %	99 %
Screen Brightness	300 cd/m²	350 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Dynamic Screen Contrast		3000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	5 ms	4 ms
Display Average Response Time	8 ms	6 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth		4.18 in 10.6 cm 106.1 mm 0.35 ft
Case Weight		6.91 kg 15 lbs
Case Width with Stand	37.27 in 94.7 cm 946.6 mm 3.11 ft	31.83 in 80.9 cm 808.6 mm 2.65 ft
Case Height with Stand	18.02 in 45.8 cm 457.8 mm 1.5 ft	18.2 in 46.2 cm 462.4 mm 1.52 ft
Case Depth with Stand	9.76 in 24.8 cm 248 mm 0.81 ft	9.65 in 24.5 cm 245 mm 0.8 ft
Case Weight with Stand	9.5 kg 21 lbs	9.91 kg 22 lbs
Case Color	Black	Black
Hardware
Built-in Camera	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 HDMI 2.0 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out 4 x USB 3.1 (Type-A; Gen 1; downstream; BC 1.2 charging at 2A) 1 x USB 3.1 (Type-C; Gen1; upstream; DisplayPort; 75W)
Audio
Audio Speakers	2 x 9W
Features
Cool Features	KVM Switch Low Blue Light Picture-in-Picture Picture-by-Picture ComfortView Plus Flicker-free technology	Smart Power Wireless charging dock for smartphones Flicker-free technology Low Blue Light
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width		31.83 in 80.9 cm 808.6 mm 2.65 ft
Case Height		14.67 in 37.3 cm 372.6 mm 1.22 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	135 mm 13.5 cm 5.315 in 0.4429 ft
Landscape or Portrait Pivot Support	No	No
Left or Right Swivel Support	Yes	Yes
Left Swivel	30 °	45 °
Right Swivel	30 °	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	35 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	60 Hz
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	DisplayPort cable USB Type-C to USB Type-A cable USB Type-C to USB Type-C cable
Certificates and Standards
Licenses		CCC China Energy Efficiency Standard Tier 2 ENERGY STAR 8.0 EPEAT Silver RoHS (EU 2002/95/EC) TCO 8.0 TCO Edge 2.0 TÜV Rheinland Eye Comfort Windows Certification
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 40 °C 32 °F - 104 °F	0 °C - 45 °C 32 °F - 113 °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 % - 95 %
Max Operating Altitude	5000	5000
Max Storage Altitude	12192	12192

Dell U4021QW

Lenovo ThinkVision T34w-20