Comparison between Acer B227Q vs Dell S2421HN

General Info
Model Number	Acer B227Q	Dell S2421HN

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2018	2020
Brand	Acer	Dell
Model Number	B227Q	S2421HN
Alias	B227Q bmiprzx B227Qbmiprzx	S2421NX
Display
Screen Size Class	22" (inches)	24" (inches)
Diagonal Size	21.5 in 54.6 cm 546.1 mm 1.79 ft	23.8 in 60.4 cm 604.478 mm 1.98 ft
Screen Width	18.74 in 47.6 cm 476.064 mm 1.56 ft	20.75 in 52.7 cm 527.04 mm 1.73 ft
Screen Height	10.54 in 26.8 cm 267.786 mm 0.88 ft	11.67 in 29.6 cm 296.46 mm 0.97 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	1920 x 1080	1920 x 1080
Screen Pixel Pitch	0.248 mm	0.275 mm
Screen Pixel Density	102 ppi	92 ppi
Screen-to-Body Ratio	88.19 %	90.06 %
Backlight Source	W-LED	W-LED
NTSC 1953	72 %	72 %
Screen Brightness	250 cd/m²	250 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 °
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	2.56 in 6.5 cm 65 mm 0.21 ft	2.12 in 5.4 cm 53.8 mm 0.18 ft
Case Weight	2.83 kg 6 lbs	3.3 kg 7 lbs
Case Width with Stand	19.29 in 49 cm 490 mm 1.61 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height with Stand	14.37 in 36.5 cm 365 mm 1.2 ft	16.25 in 41.3 cm 412.8 mm 1.35 ft
Case Depth with Stand	7.6 in 19.3 cm 193 mm 0.63 ft	6.02 in 15.3 cm 152.8 mm 0.5 ft
Case Weight with Stand	4.78 kg 11 lbs	4.1 kg 9 lbs
Case Color	Black	Black, Silver
Hardware
Built-in Camera	No	No
Connectivity	1 x HDMI 1.4 1 x DisplayPort 1.2 1 x 3.5 mm Audio In 1 x 3.5 mm Audio Out 1 x D-sub 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream)	2 x HDMI 1.4 1 x 3.5 mm Audio Out
Audio
Audio Speakers	2 x 2W
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 S2421HN - silver S2421NX - black
Ergonomics
Case Width	19.29 in 49 cm 490 mm 1.61 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height	11.61 in 29.5 cm 295 mm 0.97 ft	12.7 in 32.3 cm 322.6 mm 1.06 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 - 83 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 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 B227Q

Dell S2421HN