Comparison between Dell S2721D vs ViewSonic VX2780-4K-HD-5

General Info
Model Number	Dell S2721D	ViewSonic VX2780-4K-HD-5

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2019
Brand	Dell	ViewSonic
Model Number	S2721D	VX2780-4K-HD-5
Display
Screen Size Class	27" (inches)	27" (inches)
Diagonal Size	26.96 in 68.5 cm 684.7 mm 2.25 ft	27 in 68.6 cm 685.8 mm 2.25 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	23.49 in 59.7 cm 596.74 mm 1.96 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	13.22 in 33.6 cm 335.664 mm 1.1 ft
Display Type	IPS	AH-IPS
Display Bit Depth	8 bits	10 bits (8 bits + FRC)
Frame Rate Control		Yes
Max Number of Colors	16777216	1073741824
Bits	24	30
Screen Aspect Ratio	16:9	16:9
Screen Resolution	2560 x 1440	3840 x 2160
Screen Pixel Pitch	0.233 mm	0.155 mm
Screen Pixel Density	109 ppi	163 ppi
Screen-to-Body Ratio	89.83 %	88.48 %
Backlight Source	W-LED	W-LED
sRGB	99 %	158 %
Adobe RGB 1998		100 %
Screen Brightness	320 cd/m²	350 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast		80000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	10 ms
Display Minimum Response Time	4 ms	4 ms
Display Average Response Time	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	2.18 in 5.5 cm 55.4 mm 0.18 ft	1.84 in 4.7 cm 46.8 mm 0.15 ft
Case Weight	4.4 kg 10 lbs	5 kg 11 lbs
Case Width with Stand	24.08 in 61.2 cm 611.6 mm 2.01 ft	24.29 in 61.7 cm 617 mm 2.02 ft
Case Height with Stand	17.85 in 45.3 cm 453.4 mm 1.49 ft	16.61 in 42.2 cm 422 mm 1.38 ft
Case Depth with Stand	7.35 in 18.7 cm 186.8 mm 0.61 ft	7.28 in 18.5 cm 185 mm 0.61 ft
Case Weight with Stand	5.4 kg 12 lbs	7.15 kg 16 lbs
Case Color	Silver	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x 3.5 mm Audio Out 2 x HDMI 1.4 1 x DisplayPort 1.2	1 x 3.5 mm Audio Out 2 x HDMI 2.0 1 x DisplayPort 1.2
Audio
Audio Speakers	2 x 3W
Features
Cool Features	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology	Flicker-free technology AMD FreeSync technology Blue Light Filter
Extra Features	Anti-theft stand lock slot - Kensington	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	24.08 in 61.2 cm 611.6 mm 2.01 ft	24.29 in 61.7 cm 617 mm 2.02 ft
Case Height	14.35 in 36.5 cm 364.6 mm 1.2 ft	14.44 in 36.7 cm 366.9 mm 1.2 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	100 x 100	100 x 100
Removable VESA Stand	Yes	Yes
Height Adjustment	No	Yes
Height Adjustment Range		130 mm 13 cm 5.1181 in 0.4265 ft
Landscape or Portrait Pivot Support	No	Yes
Left Pivot		0 °
Right Pivot		90 °
Left or Right Swivel Support	No	Yes
Left Swivel		45 °
Right Swivel		45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	22 °
Frequency and Interpolation
Vertical Digital Frequency	48 Hz - 75 Hz	40 Hz - 75 Hz
Horizontal Digital Frequency	30 kHz - 115 kHz	15 kHz - 160 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	HDMI cable	HDMI cable
Certificates and Standards
Licenses	ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light	CCC CEL Level 3 China RoHS
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 %	20 % - 90 %
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 S2721D

ViewSonic VX2780-4K-HD-5