Comparison between ViewSonic VP2785-4K vs Dell U2721DE

General Info
Model Number	ViewSonic VP2785-4K	Dell U2721DE

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2017	2020
Brand	ViewSonic	Dell
Model Number	VP2785-4K	U2721DE
Display
Screen Size Class	27" (inches)	27" (inches)
Diagonal Size	27 in 68.6 cm 685.9 mm 2.25 ft	26.96 in 68.5 cm 684.7 mm 2.25 ft
Screen Width	23.49 in 59.7 cm 596.74 mm 1.96 ft	23.49 in 59.7 cm 596.736 mm 1.96 ft
Screen Height	13.21 in 33.6 cm 335.66 mm 1.1 ft	13.22 in 33.6 cm 335.664 mm 1.1 ft
Display Manufacturer	LG Display
Display Type	AH-IPS	IPS
Display Bit Depth	10 bits (8 bits + FRC)	8 bits
Frame Rate Control	Yes
Lut	3D LUT 14 bits
Max Number of Colors	1073741824	16777216
Bits	30	24
Screen Aspect Ratio	16:9	16:9
Screen Resolution	3840 x 2160	2560 x 1440
Screen Pixel Pitch	0.155 mm	0.233 mm
Screen Pixel Density	163 ppi	109 ppi
Screen-to-Body Ratio	90.18 %	92.16 %
Backlight Source	W-LED	W-LED
DCI P3	96.4%	89%
sRGB	100 %	99 %
Adobe RGB 1998	99 %
NTSC 1953	75.06 %
Screen Brightness	350 cd/m²	350 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	20000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	30 ms
Display Minimum Response Time	7 ms	5 ms
Display Average Response Time	14 ms	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR	HDR10
3D	No	No
Size, weight, color
Case Depth	2.27 in 5.8 cm 57.58 mm 0.19 ft	1.54 in 3.9 cm 39 mm 0.13 ft
Case Weight	3.92 kg 9 lbs	4.19 kg 9 lbs
Case Width with Stand	24.11 in 61.2 cm 612.4 mm 2.01 ft	24.1 in 61.2 cm 612.2 mm 2.01 ft
Case Height with Stand	21.48 in 54.6 cm 545.51 mm 1.79 ft	15.36 in 39 cm 390.2 mm 1.28 ft
Case Depth with Stand	8.46 in 21.5 cm 214.96 mm 0.71 ft	7.09 in 18 cm 180 mm 0.59 ft
Case Weight with Stand	6.4 kg 14 lbs	6.24 kg 14 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.1 (Type-C) 2 x HDMI 2.0 1 x DisplayPort 1.4 (Input mini) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.4 3 x USB 3.0 (downstream) 1 x USB 3.0 (upstream)	1 x USB 3.1 (Type-C; upstream; DP; 65W) 1 x Ethernet RJ45 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out 1 x DisplayPort 1.4 (Output MST) 1 x HDMI 1.4 2 x USB 3.0 (downstream) 2 x USB 3.0 (downstream; BC 1.2)
Audio
Features
Cool Features	HDCP (High-bandwidth Digital Content Protection) Light sensor Picture-in-Picture Picture-by-Picture EcoModes Hardware calibration ready	Flicker-free technology Low Blue Light
Extra Features	Anti-theft stand lock slot - Kensington	Security lock slot
Ergonomics
Case Width	24.11 in 61.2 cm 612.4 mm 2.01 ft	24.1 in 61.2 cm 612.2 mm 2.01 ft
Case Height	14.28 in 36.3 cm 362.7 mm 1.19 ft	13.98 in 35.5 cm 355 mm 1.16 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	130 mm 13 cm 5.1181 in 0.4265 ft
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	0 °	90 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	60 °	40 °
Right Swivel	60 °	40 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	56 Hz - 76 Hz
Horizontal Digital Frequency		30 kHz - 90 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	DisplayPort cable - mini-DP to DP HDMI cable USB 3.0 upstream cable	DisplayPort cable USB Type-C to Type-C cable
Certificates and Standards
Licenses	CB CE CCC EAC / CU ENERGY STAR ErP FCC class B ICES-003 RoHS2 TCO Certified Displays WEEE	ENERGY STAR EPEAT TCO Certified RoHS NFPA 99
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	20 % - 90 %	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	12192	12192

ViewSonic VP2785-4K

Dell U2721DE