Comparison between Acer B277U vs Dell S2721D

General Info
Model Number	Acer B277U	Dell S2721D

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2018	2020
Brand	Acer	Dell
Model Number	B277U	S2721D
Alias	B277U bmiipprzx
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	8 bits (6 bits + FRC)	8 bits
Frame Rate Control	Yes
Max Number of Colors	16777216	16777216
Bits	24	24
Screen Aspect Ratio	16:9	16:9
Screen Resolution	2560 x 1440	2560 x 1440
Screen Pixel Pitch	0.233 mm	0.233 mm
Screen Pixel Density	109 ppi	109 ppi
Screen-to-Body Ratio	88.89 %	89.83 %
Backlight Source	W-LED	W-LED
sRGB	100 %	99 %
Screen Brightness	350 cd/m²	320 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	100000000 : 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	2.69 in 6.8 cm 68.3 mm 0.22 ft	2.18 in 5.5 cm 55.4 mm 0.18 ft
Case Weight		4.4 kg 10 lbs
Case Width with Stand	24.17 in 61.4 cm 614 mm 2.01 ft	24.08 in 61.2 cm 611.6 mm 2.01 ft
Case Height with Stand	16.06 in 40.8 cm 408 mm 1.34 ft	17.85 in 45.3 cm 453.4 mm 1.49 ft
Case Depth with Stand	8.15 in 20.7 cm 207 mm 0.68 ft	7.35 in 18.7 cm 186.8 mm 0.61 ft
Case Weight with Stand	8.2 kg 18 lbs	5.4 kg 12 lbs
Case Color	Black	Silver
Hardware
Built-in Camera	No	No
Connectivity	2 x HDMI 1.4 1 x DisplayPort 1.2 1 x D-sub 1 x 3.5 mm Audio Out 1 x 3.5 mm Audio In 1 x DisplayPort 1.2 (Input mini) 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream)	1 x 3.5 mm Audio Out 2 x HDMI 1.4 1 x DisplayPort 1.2
Audio
Audio Speakers	2 x 2W	2 x 3W
Features
Cool Features	Flicker-free technology HDCP (High-bandwidth Digital Content Protection) AMD FreeSync technology Blue Light Filter	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology
Extra Features		Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	24.17 in 61.4 cm 614 mm 2.01 ft	24.08 in 61.2 cm 611.6 mm 2.01 ft
Case Height	14.45 in 36.7 cm 367 mm 1.2 ft	14.35 in 36.5 cm 364.6 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	Yes	No
Height Adjustment Range	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	No
Left Swivel	45 °
Right Swivel	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	25 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	55 Hz - 75 Hz	48 Hz - 75 Hz
Horizontal Digital Frequency	30 kHz - 80 kHz	30 kHz - 115 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	D-sub cable DisplayPort cable - optional HDMI cable - optional USB 3.0 upstream cable	HDMI cable
Certificates and Standards
Licenses	ENERGY STAR 7.0 Epeat Gold ErP TCO Certified Displays 7.0	ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light
Usage and Storage Requirements
Safe Operating Temperature Level		0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level		10 % - 80 %
Internal Storage Temperature		-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity		5 % - 90 %
Max Operating Altitude		5000
Max Storage Altitude		12192

Acer B277U

Dell S2721D