Comparison between BenQ BL2581T vs Dell P2421

General Info
Model Number	BenQ BL2581T	Dell P2421

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2018	2020
Brand	BenQ	Dell
Model Number	BL2581T	P2421
Display
Screen Size Class	25" (inches)	24" (inches)
Diagonal Size	24.98 in 63.4 cm 634.4 mm 2.08 ft	24.06 in 61.1 cm 611 mm 2 ft
Screen Width	21.08 in 53.6 cm 535.5 mm 1.76 ft	20.41 in 51.8 cm 518.4 mm 1.7 ft
Screen Height	13.34 in 33.9 cm 338.8 mm 1.11 ft	12.76 in 32.4 cm 324 mm 1.06 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	16:10	16:10
Screen Resolution	1920 x 1200	1920 x 1200
Screen Pixel Pitch	0.279 mm	0.27 mm
Screen Pixel Density	91 ppi	94 ppi
Screen-to-Body Ratio	85.74 %	86.78 %
Backlight Source	W-LED	W-LED
sRGB	99 %	99 %
Adobe RGB 1998	70 %
NTSC 1953	72 %
Screen Brightness	250 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	20000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	35 ms
Display Minimum Response Time	5 ms	5 ms
Display Average Response Time	14 ms	8 ms
Display Maximum Response Time	24 ms
Display Coating		Anti-glare/Matte (3H)
3D	No
Size, weight, color
Case Depth	2.34 in 5.9 cm 59.4 mm 0.19 ft	1.74 in 4.4 cm 44.1 mm 0.14 ft
Case Weight	4.1 kg 9 lbs	3.5 kg 8 lbs
Case Width with Stand	21.59 in 54.9 cm 548.5 mm 1.8 ft	20.91 in 53.1 cm 531 mm 1.74 ft
Case Height with Stand	16.87 in 42.9 cm 428.5 mm 1.41 ft	14.6 in 37.1 cm 370.8 mm 1.22 ft
Case Depth with Stand	9.08 in 23.1 cm 230.7 mm 0.76 ft	6.54 in 16.6 cm 166 mm 0.54 ft
Case Weight with Stand	6.8 kg 15 lbs
Case Color	Black
Hardware
Built-in Camera	No	No
Connectivity	1 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 DVI-D Dual Link 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream)	1 x USB 3.0 (upstream) 1 x HDMI 1.4 1 x DVI-D 1 x D-sub 1 x DisplayPort 1.2 2 x USB 2.0 (downstream) 2 x USB 3.0 (downstream)
Audio
Audio Speakers	2 x 1W
Features
Cool Features	Flicker-free technology HDCP (High-bandwidth Digital Content Protection) Low Blue Light Light sensor AMA (Advanced Motion Accelerator) Brightness Intelligence	Flicker-free technology Low Blue Light
Extra Features	Anti-theft stand lock slot - Kensington	Security lock slot
Ergonomics
Case Width	21.59 in 54.9 cm 548.5 mm 1.8 ft	20.91 in 53.1 cm 531 mm 1.74 ft
Case Height	15.19 in 38.6 cm 385.8 mm 1.27 ft	14.35 in 36.5 cm 364.5 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	Yes
Height Adjustment Range	140 mm 14 cm 5.5118 in 0.4593 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	45 °	45 °
Right Swivel	45 °	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	20 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	50 Hz - 76 Hz	60 Hz
Horizontal Digital Frequency	30 kHz - 83 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	D-sub cable	DisplayPort cable D-Sub cable (Japan only)
Certificates and Standards
Licenses	ENERGY STAR 7.0 TCO Certified Displays WHQL (Windows 10; Windows 8.1; Windows 8; Windows 7)	ENERGY STAR EPEAT RoHS TCO Certified Display
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 % - 90 %	20 % - 80 %
Internal Storage Temperature		-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity		10 % - 90 %
Max Operating Altitude		5000
Max Storage Altitude		12192

BenQ BL2581T

Dell P2421