Comparison between Dell UltraSharp UP2718Q vs Dell U3821DW

General Info
Model Number	Dell UltraSharp UP2718Q	Dell U3821DW

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2017	2021
Brand	Dell	Dell
Model Series		UltraSharp
Model Number	UltraSharp UP2718Q	U3821DW
Display
Screen Size Class	27" (inches)	38" (inches)
Diagonal Size	26.96 in 68.5 cm 684.7 mm 2.25 ft	37.52 in 95.3 cm 952.9 mm 3.13 ft
Screen Width	23.47 in 59.6 cm 596.16 mm 1.96 ft	35.04 in 89 cm 890 mm 2.92 ft
Screen Height	13.2 in 33.5 cm 335.34 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	IPS	IPS
Display Bit Depth	10 bits	10 bits
Frame Rate Control	No
Lut	3D LUT 14 bits
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	16:9	24:10
Screen Resolution	3840 x 2160	3840 x 1600
Screen Pixel Pitch	0.155 mm	0.229 mm
Screen Pixel Density	163 ppi	109 ppi
Screen-to-Body Ratio	86.47 %	98.38 %
Backlight Source	GB-r LED	W-LED
DCI P3	97.7%	95%
Rec.2020	76.9
sRGB	100 %	100 %
Adobe RGB 1998	100 %
Screen Brightness	400 cd/m²	300 cd/m²
Max Screen Brightness	1000 cd/m²
Static Screen Contrast	1000 : 1	1000 : 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	8 ms	8 ms
Display Maximum Response Time	13 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR	HDR10	DisplayHDR 600
3D	No	No
Size, weight, color
Case Depth	2.54 in 6.4 cm 64.4 mm 0.21 ft	4.03 in 10.2 cm 102.4 mm 0.34 ft
Case Weight	5.98 kg 13 lbs	8.8 kg 19 lbs
Case Width with Stand	24.66 in 62.6 cm 626.4 mm 2.06 ft	35.21 in 89.4 cm 894.3 mm 2.93 ft
Case Height with Stand	15.85 in 40.3 cm 402.6 mm 1.32 ft	17.47 in 44.4 cm 443.8 mm 1.46 ft
Case Depth with Stand	7.89 in 20 cm 200.3 mm 0.66 ft	9.89 in 25.1 cm 251.2 mm 0.82 ft
Case Weight with Stand	8.4 kg 18 lbs	13.6 kg 30 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	2 x USB 3.0 (upstream) 2 x HDMI 2.0 1 x DisplayPort 1.4 (Input mini) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.4 2 x USB 3.0 (charger - 5V/2.0A) 2 x USB 3.0 (downstream)	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	Picture-by-Picture Picture-in-Picture DDC/CI HDCP (High-bandwidth Digital Content Protection) 2.2	Low Blue Light Picture-by-Picture Picture-in-Picture Flicker-free technology KVM Switch
Extra Features		Security lock slot
Ergonomics
Case Width	24.66 in 62.6 cm 626.4 mm 2.06 ft	35.21 in 89.4 cm 894.3 mm 2.93 ft
Case Height	14.53 in 36.9 cm 369.1 mm 1.21 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	145 mm 14.5 cm 5.7087 in 0.4757 ft	120 mm 12 cm 4.7244 in 0.3937 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	0 °
Right Pivot	90 °
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	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	24 Hz - 75 Hz	56 Hz - 76 Hz
Horizontal Digital Frequency	30 kHz - 140 kHz	30 kHz - 100 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	DisplayPort cable - mini-DP to DP HDMI cable USB 3.0 upstream cable	DisplayPort cable HDMI cable USB Type-C cable USB Type-B 3.2 Gen 1 cable
Certificates and Standards
Licenses	CECP ENERGY STAR RoHS compliant 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	5000	5000
Max Storage Altitude	12192	12192

Dell UltraSharp UP2718Q

Dell U3821DW