Comparison between AOC U2777PQU vs Dell U2721DE

General Info
Model Number	AOC U2777PQU	Dell U2721DE

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2016	2020
Brand	AOC	Dell
Model Number	U2777PQU	U2721DE
Display
Screen Size Class	27" (inches)	27" (inches)
Diagonal Size	27 in 68.6 cm 685.8 mm 2.25 ft	26.96 in 68.5 cm 684.7 mm 2.25 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	23.49 in 59.7 cm 596.736 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	IPS
Display Bit Depth	10 bits	8 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		92.16 %
Backlight Source		W-LED
DCI P3		89%
sRGB	100 %	99 %
Screen Brightness	350 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 °
Display Minimum Response Time	4 ms	5 ms
Display Average Response Time		8 ms
Display Coating		Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth		1.54 in 3.9 cm 39 mm 0.13 ft
Case Weight		4.19 kg 9 lbs
Case Width with Stand	24.21 in 61.5 cm 614.9 mm 2.02 ft	24.1 in 61.2 cm 612.2 mm 2.01 ft
Case Height with Stand	20.91 in 53.1 cm 531.15 mm 1.74 ft	15.36 in 39 cm 390.2 mm 1.28 ft
Case Depth with Stand	7.65 in 19.4 cm 194.27 mm 0.64 ft	7.09 in 18 cm 180 mm 0.59 ft
Case Weight with Stand	7.3 kg 16 lbs	6.24 kg 14 lbs
Case Color	Black, Silver	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.0 (upstream) 1 x HDMI 2.0 (MHL) 1 x DVI-D Dual Link 1 x 3.5 mm Audio Out 1 x D-sub 1 x DisplayPort 1.2 2 x USB 2.0 (downstream) 2 x USB 3.0 (downstream)	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
Audio Speakers	2 x 3W
Features
Cool Features	Flicker-free technology HDCP (High-bandwidth Digital Content Protection)	Flicker-free technology Low Blue Light
Extra Features	Anti-theft stand lock slot - Kensington	Security lock slot
Ergonomics
Case Width		24.1 in 61.2 cm 612.2 mm 2.01 ft
Case Height		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	180 mm 18 cm 7.0866 in 0.5906 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	165 °	40 °
Right Swivel	165 °	40 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	24 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	23 Hz - 80 Hz	56 Hz - 76 Hz
Horizontal Digital Frequency	30 kHz - 160 kHz	30 kHz - 90 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	Audio cable D-sub cable DisplayPort cable HDMI cable USB 3.0 upstream cable	DisplayPort cable USB Type-C to Type-C cable
Certificates and Standards
Licenses	CCC CE EAC ENERGY STAR 6.0 Epeat Silver RoHS TCO Certified Displays 6.0	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	10 % - 85 %	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	3657.6	5000
Max Storage Altitude	12192	12192

AOC U2777PQU

Dell U2721DE