Comparison between Lenovo ThinkVision P40w-20 vs Dell U3821DW

General Info
Model Number	Lenovo ThinkVision P40w-20	Dell U3821DW

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2021	2021
Brand	Lenovo	Dell
Model Series		UltraSharp
Model Number	ThinkVision P40w-20	U3821DW
Alias	P40w-20
Display
Screen Size Class	40" (inches)	38" (inches)
Diagonal Size	39.71 in 100.9 cm 1008.59 mm 3.31 ft	37.52 in 95.3 cm 952.9 mm 3.13 ft
Screen Width	36.59 in 92.9 cm 929.28 mm 3.05 ft	35.04 in 89 cm 890 mm 2.92 ft
Screen Height	15.43 in 39.2 cm 392.04 mm 1.29 ft	15.27 in 38.8 cm 387.8 mm 1.27 ft
Display Curvature	2500	2300
Display Type	IPS	IPS
Display Bit Depth	10 bits	10 bits
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	21:9	24:10
Screen Resolution	5120 x 2160	3840 x 1600
Screen Pixel Pitch	0.182 mm	0.229 mm
Screen Pixel Density	140 ppi	109 ppi
Screen-to-Body Ratio	89.68 %	98.38 %
Backlight Source	W-LED	W-LED
DCI P3	98%	95%
sRGB	99 %	100 %
Screen Brightness	300 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	3000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	4 ms	5 ms
Display Average Response Time	6 ms	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR		DisplayHDR 600
3D	No	No
Size, weight, color
Case Depth	3.97 in 10.1 cm 100.8 mm 0.33 ft	4.03 in 10.2 cm 102.4 mm 0.34 ft
Case Weight	9.95 kg 22 lbs	8.8 kg 19 lbs
Case Width with Stand	37.31 in 94.8 cm 947.6 mm 3.11 ft	35.21 in 89.4 cm 894.3 mm 2.93 ft
Case Height with Stand	20.13 in 51.1 cm 511.2 mm 1.68 ft	17.47 in 44.4 cm 443.8 mm 1.46 ft
Case Depth with Stand	11 in 27.9 cm 279.4 mm 0.92 ft	9.89 in 25.1 cm 251.2 mm 0.82 ft
Case Weight with Stand	14.65 kg 32 lbs	13.6 kg 30 lbs
Case Color	Raven Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.2 (Type-C; Gen 1; upstream; 27W) 1 x Ethernet RJ45 (Gigabit) 1 x DisplayPort 1.4 1 x Thunderbolt 4.0 (Type-C; upstream; 100W; DP Alt Mode) 1 x Thunderbolt 4.0 1 x HDMI 2.0 4 x USB 3.2 (Type-A; Gen 1; downstream) 1 x 3.5 mm Audio Out (line-out for speakers) 1 x USB 3.2 (Type-B; Gen 1; upstream)	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)
Audio
Audio Speakers	2 x 9W	2 x 9W
Features
Cool Features	Flicker-free technology Natural Low Blue Light technology Picture-in-Picture True Split technology Picture-by-Picture 3-side NearEdgeless Design eKVM switch	Low Blue Light Picture-by-Picture Picture-in-Picture Flicker-free technology KVM Switch
Extra Features	Anti-theft stand lock slot - Kensington	Security lock slot
Ergonomics
Case Width	37.31 in 94.8 cm 947.6 mm 3.11 ft	35.21 in 89.4 cm 894.3 mm 2.93 ft
Case Height	16.88 in 42.9 cm 428.7 mm 1.41 ft	15.44 in 39.2 cm 392.3 mm 1.29 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	120 mm 12 cm 4.7244 in 0.3937 ft
Landscape or Portrait Pivot Support	No	No
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	22 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	48 Hz - 75 Hz	56 Hz - 76 Hz
Horizontal Digital Frequency		30 kHz - 100 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	Thunderbolt 4 cabke (40 Gbps)	DisplayPort cable HDMI cable USB Type-C cable USB Type-B 3.2 Gen 1 cable
Certificates and Standards
Licenses	CCC China Energy Efficiency Standard Tier 2 EnergyStar 8.0 EPEAT Silver TCO Certified Displays 8.0 TCO Edge 2.0 TÜV Rheinland Eyesafe Display Certification Windows Certification (Windows 10)	ENERGY STAR 8.0 EPEAT Gold RoHS TAA Availability 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	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

Lenovo ThinkVision P40w-20

Dell U3821DW