Comparison between BenQ XL2420Z vs Dell S2721HN

General Info
Model Number	BenQ XL2420Z	Dell S2721HN

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2014	2020
Brand	BenQ	Dell
Model Number	XL2420Z	S2721HN
Alias		S2721NX
Display
Screen Size Class	24" (inches)	27" (inches)
Diagonal Size	24 in 61 cm 609.7 mm 2 ft	27 in 68.6 cm 685.891 mm 2.25 ft
Screen Width	20.92 in 53.1 cm 531.36 mm 1.74 ft	23.54 in 59.8 cm 597.89 mm 1.96 ft
Screen Height	11.77 in 29.9 cm 298.89 mm 0.98 ft	13.24 in 33.6 cm 336.312 mm 1.1 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	0.276 mm	0.311 mm
Screen Pixel Density	91 ppi	81 ppi
Screen-to-Body Ratio	82.63 %	90.67 %
Backlight Source	W-LED	W-LED
sRGB	95 %
NTSC 1953	72 %	72 %
Screen Brightness	350 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	12000000 : 1
Screen Horizontal Viewing Angle	170 °	178 °
Screen Vertical Viewing Angle	160 °	178 °
Screen Input Lag	3 ms
Display Minimum Response Time	1 ms	4 ms
Display Average Response Time		8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	Yes	No
Size, weight, color
Case Depth	2.4 in 6.1 cm 61 mm 0.2 ft	2.13 in 5.4 cm 54 mm 0.18 ft
Case Weight		4.3 kg 9 lbs
Case Width with Stand	22.4 in 56.9 cm 569 mm 1.87 ft	24.01 in 61 cm 609.9 mm 2 ft
Case Height with Stand	20.3 in 51.6 cm 515.6 mm 1.69 ft	17.85 in 45.3 cm 453.3 mm 1.49 ft
Case Depth with Stand	5.8 in 14.7 cm 147.3 mm 0.48 ft	7.35 in 18.7 cm 186.8 mm 0.61 ft
Case Weight with Stand	6.1 kg 13 lbs	5.2 kg 11 lbs
Case Color	Black	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 Microphone In 1 x DVI-D Dual Link 3 x USB 2.0 (downstream) 1 x USB 2.0 (upstream)	2 x HDMI 1.4 1 x 3.5 mm Audio Out
Audio
Features
Cool Features	Display Pilot Flicker-free technology Senseye Low Blue Light Nvidia 3D LightBoost Motion Blur Reduction 2.0 HDCP (High-bandwidth Digital Content Protection) AMA (Advanced Motion Accelerator) Nvidia 3D Vision Black eQualizer 2.0 S Switch Arc	Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology
Extra Features	Anti-theft stand lock slot - Kensington	Anti-theft stand lock slot - Kensington S2721HN - silver S2721NX - black
Ergonomics
Case Width	22.4 in 56.9 cm 569 mm 1.87 ft	24.01 in 61 cm 609.9 mm 2 ft
Case Height	13.3 in 33.8 cm 337.8 mm 1.11 ft	14.31 in 36.4 cm 363.6 mm 1.19 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	130 mm 13 cm 5.1181 in 0.4265 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	0 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	No
Left Swivel	35 °
Right Swivel	35 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	20 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	24 Hz - 144 Hz	48 Hz - 75 Hz
Horizontal Digital Frequency	15 kHz - 140 kHz	30 kHz - 83 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	D-sub cable DVI-D cable HDMI cable USB 3.0 cable	HDMI cable
Certificates and Standards
Licenses	ENERGY STAR 6.0 WHQL (Windows 8; Windows 7)	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

BenQ XL2420Z

Dell S2721HN