Comparison between Acer XB240H vs Dell S2421HS

General Info
Model Number	Acer XB240H	Dell S2421HS

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2014	2020
Brand	Acer	Dell
Model Number	XB240H	S2421HS
Alias	XB240Hbmjdpr	S2421HSX
Display
Screen Size Class	24" (inches)	24" (inches)
Diagonal Size	24 in 61 cm 609.7 mm 2 ft	23.8 in 60.4 cm 604.478 mm 1.98 ft
Screen Width	20.92 in 53.1 cm 531.36 mm 1.74 ft	20.75 in 52.7 cm 527.04 mm 1.73 ft
Screen Height	11.77 in 29.9 cm 298.89 mm 0.98 ft	11.67 in 29.6 cm 296.46 mm 0.97 ft
Display Manufacturer	AU Optronics
Display Type	TN	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	0.277 mm	0.275 mm
Screen Pixel Density	91 ppi	92 ppi
Screen-to-Body Ratio	83.39 %	90.06 %
Backlight Source	W-LED	W-LED
NTSC 1953	72 %	72 %
Screen Brightness	350 cd/m²	250 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	100000000 : 1
Screen Horizontal Viewing Angle	170 °	178 °
Screen Vertical Viewing Angle	160 °	178 °
Display Minimum Response Time	1 ms	4 ms
Display Average Response Time	4 ms	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	2.39 in 6.1 cm 60.7 mm 0.2 ft	2.12 in 5.4 cm 53.8 mm 0.18 ft
Case Weight		3.2 kg 7 lbs
Case Width with Stand	22.32 in 56.7 cm 567 mm 1.86 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height with Stand	15.18 in 38.6 cm 385.5 mm 1.26 ft	13.65 in 34.7 cm 346.8 mm 1.14 ft
Case Depth with Stand	9.65 in 24.5 cm 245 mm 0.8 ft	6.29 in 16 cm 159.7 mm 0.52 ft
Case Weight with Stand	3.94 kg 9 lbs	4.8 kg 11 lbs
Case Color	Black	Black, Silver
Hardware
Built-in Camera	No	No
Connectivity	1 x DVI-D Dual Link 1 x D-sub 1 x 3.5 mm Audio Out 1 x 3.5 mm Audio In 1 x HDMI 1.4 (MHL) 1 x DisplayPort 1.2	1 x 3.5 mm Audio Out 1 x HDMI 1.4 1 x DisplayPort 1.2
Audio
Audio Speakers	2 x 2W
Features
Cool Features	Flicker-free technology HDCP (High-bandwidth Digital Content Protection)	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology
Extra Features		Anti-theft stand lock slot - Kensington S2421HS - silver S2421HSX - black
Ergonomics
Case Width	22.32 in 56.7 cm 567 mm 1.86 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height	13.22 in 33.6 cm 335.9 mm 1.1 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	Yes
Height Adjustment Range	150 mm 15 cm 5.9055 in 0.4921 ft	100 mm 10 cm 3.937 in 0.3281 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	60 °	30 °
Right Swivel	60 °	30 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	35 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	144 Hz	48 Hz - 75 Hz
Horizontal Digital Frequency		30 kHz - 83 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	D-sub cable DVI-D cable DisplayPort cable	HDMI cable
Certificates and Standards
Licenses	CE ENERGY STAR 6.0 TCO Certified Displays 6.0 TÜV/GS	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 XB240H

Dell S2421HS