Comparison between Dell UltraSharp U2711 vs Dell U3821DW

General Info
Model Number	Dell UltraSharp U2711	Dell U3821DW

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2010	2021
Brand	Dell	Dell
Model Series		UltraSharp
Model Number	UltraSharp U2711	U3821DW
Display
Screen Size Class	27" (inches)	38" (inches)
Diagonal Size	27 in 68.6 cm 685.8 mm 2.25 ft	37.52 in 95.3 cm 952.9 mm 3.13 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	35.04 in 89 cm 890 mm 2.92 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	15.27 in 38.8 cm 387.8 mm 1.27 ft
Display Curvature		2300
Display Manufacturer	LG Display
Display Type	H-IPS	IPS
Display Bit Depth	10 bits (8 bits + FRC)	10 bits
Frame Rate Control	Yes
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	16:9	24:10
Screen Resolution	2560 x 1440	3840 x 1600
Screen Pixel Pitch	0.233 mm	0.229 mm
Screen Pixel Density	109 ppi	109 ppi
Screen-to-Body Ratio	80.31 %	98.38 %
Backlight Source	CCFL	W-LED
DCI P3		95%
sRGB	100 %	100 %
Adobe RGB 1998	96 %
NTSC 1953	102 %
Screen Brightness	350 cd/m²	300 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 °
Screen Input Lag	25 ms
Display Minimum Response Time	6 ms	5 ms
Display Average Response Time	14 ms	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR		DisplayHDR 600
3D	No	No
Size, weight, color
Case Depth	3.66 in 9.3 cm 93 mm 0.31 ft	4.03 in 10.2 cm 102.4 mm 0.34 ft
Case Weight	7.72 kg 17 lbs	8.8 kg 19 lbs
Case Width with Stand	25.46 in 64.7 cm 646.71 mm 2.12 ft	35.21 in 89.4 cm 894.3 mm 2.93 ft
Case Height with Stand	16.84 in 42.8 cm 427.83 mm 1.4 ft	17.47 in 44.4 cm 443.8 mm 1.46 ft
Case Depth with Stand	7.87 in 20 cm 199.95 mm 0.66 ft	9.89 in 25.1 cm 251.2 mm 0.82 ft
Case Weight with Stand	10.46 kg 23 lbs	13.6 kg 30 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x HDMI 1 x DisplayPort 1.2 1 x D-sub 1 x AV Component In (YPbPr + L/R) 1 x AV Composite In (Video + L/R) 2 x DVI-D Dual Link 4 x USB 2.0 (downstream) 3 x 3.5 mm Audio Out 1 x USB 2.0 (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
Features
Cool Features	DDC/CI HDCP (High-bandwidth Digital Content Protection)	Low Blue Light Picture-by-Picture Picture-in-Picture Flicker-free technology KVM Switch
Extra Features		Security lock slot
Ergonomics
Case Width	25.46 in 64.7 cm 646.71 mm 2.12 ft	35.21 in 89.4 cm 894.3 mm 2.93 ft
Case Height	15.18 in 38.6 cm 385.67 mm 1.27 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	90 mm 9 cm 3.5433 in 0.2953 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	40 °	30 °
Right Swivel	40 °	30 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	4 °	5 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	56 Hz - 76 Hz	56 Hz - 76 Hz
Horizontal Digital Frequency	30 kHz - 89 kHz	30 kHz - 100 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	D-sub cable DisplayPort cable DVI-D cable USB 2.0 upstream cable	DisplayPort cable HDMI cable USB Type-C cable USB Type-B 3.2 Gen 1 cable
Certificates and Standards
Licenses	ENERGY STAR TCO Certified Displays	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	3048	5000
Max Storage Altitude	10668	12192

Dell UltraSharp U2711

Dell U3821DW