Comparison between Dell S2721QS vs AOC U2879VF

General Info
Model Number	Dell S2721QS	AOC U2879VF

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2015
Brand	Dell	AOC
Model Number	S2721QS	U2879VF
Display
Screen Size Class	27" (inches)	28" (inches)
Diagonal Size	26.96 in 68.5 cm 684.7 mm 2.25 ft	27.9 in 70.9 cm 708.538 mm 2.32 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	24.45 in 62.1 cm 620.93 mm 2.04 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	13.44 in 34.1 cm 341.28 mm 1.12 ft
Display Manufacturer		Innolux
Display Type	IPS	TN
Display Bit Depth	10 bits	10 bits (8 bits + FRC)
Frame Rate Control		Yes
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	16:9	16:9
Screen Resolution	3840 x 2160	3840 x 2160
Screen Pixel Pitch	0.155 mm	0.162 mm
Screen Pixel Density	163 ppi	157 ppi
Screen-to-Body Ratio	89.83 %	84.72 %
Backlight Source	W-LED	W-LED
sRGB	99 %
NTSC 1953		72 %
Screen Brightness	350 cd/m²	300 cd/m²
Max Screen Brightness	390 cd/m²
Static Screen Contrast	1300 : 1	1000 : 1
Dynamic Screen Contrast		80000000 : 1
Screen Horizontal Viewing Angle	178 °	170 °
Screen Vertical Viewing Angle	178 °	160 °
Screen Input Lag		30 ms
Display Minimum Response Time	4 ms	1 ms
Display Average Response Time	8 ms	3.5 ms
Display Maximum Response Time		25 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	1.92 in 4.9 cm 48.7 mm 0.16 ft
Case Weight	4.7 kg 10 lbs	4 kg 9 lbs
Case Width with Stand	24.08 in 61.2 cm 611.6 mm 2.01 ft	25.96 in 65.9 cm 659.3 mm 2.16 ft
Case Height with Stand	15.75 in 40 cm 400.1 mm 1.31 ft	18.44 in 46.8 cm 468.4 mm 1.54 ft
Case Depth with Stand	6.88 in 17.5 cm 174.7 mm 0.57 ft	6.03 in 15.3 cm 153.2 mm 0.5 ft
Case Weight with Stand	6.4 kg 14 lbs	5.26 kg 12 lbs
Case Color	Silver	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x 3.5 mm Audio Out 2 x HDMI 2.0 1 x DisplayPort 1.2	1 x DVI-D Dual Link 1 x D-sub 1 x 3.5 mm Audio Out 1 x HDMI 2.0 (MHL) 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	HDCP (High-bandwidth Digital Content Protection) Picture-by-Picture Picture-in-Picture AMD FreeSync technology Flicker-free technology
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	25.96 in 65.9 cm 659.3 mm 2.16 ft
Case Height	14.35 in 36.5 cm 364.6 mm 1.2 ft	14.94 in 37.9 cm 379.4 mm 1.24 ft
Vesa Mount Support	Yes	No
VESA Interface Standard Size	100 x 100	75 x 75
Removable VESA Stand	Yes	Yes
Height Adjustment	Yes	No
Height Adjustment Range	110 mm 11 cm 4.3307 in 0.3609 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	90 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	No
Left Swivel	30 °
Right Swivel	30 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	3.5 °
Backward Tilt	21 °	23.5 °
Frequency and Interpolation
Vertical Digital Frequency	40 Hz - 60 Hz	23 Hz - 80 Hz
Horizontal Digital Frequency	130 kHz - 137 kHz	30 kHz - 140 kHz
Screen Interpolation Measurement Unit	NULL
Accessories
Extras	HDMI cable	D-sub cable DisplayPort cable DVI cable HDMI cable
Certificates and Standards
Licenses	ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light	BSMI CCC CE cTÜVus ENERGY STAR 6.0 EPA FCC ISO9241-307 RCM TÜV/Ergonomics WIN7/8
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 % - 85 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-25 °C - 55 °C -13 °F - 131 °F
Internal Storage Humidity	5 % - 90 %	5 % - 93 %
Max Operating Altitude	5000	3657.6
Max Storage Altitude	12192	12192

Dell S2721QS

AOC U2879VF