Comparison between Acer RC271U vs Dell P2421DC

General Info
Model Number	Acer RC271U	Dell P2421DC

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2019	2020
Brand	Acer	Dell
Model Series	RC1
Model Number	RC271U	P2421DC
Alias	RC271Usmidpx RC271U smidpx
Display
Screen Size Class	27" (inches)	24" (inches)
Diagonal Size	27 in 68.6 cm 685.8 mm 2.25 ft	23.78 in 60.4 cm 604 mm 1.98 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	20.74 in 52.7 cm 526.85 mm 1.73 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	11.67 in 29.6 cm 296.35 mm 0.97 ft
Display Type	IPS	IPS
Display Bit Depth	8 bits	8 bits (6 bits + FRC)
Frame Rate Control	No	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	0.206 mm
Screen Pixel Density	109 ppi	123 ppi
Screen-to-Body Ratio	89.62 %	90.13 %
Backlight Source	W-LED	W-LED
sRGB	100 %	99 %
Screen Brightness	350 cd/m²	300 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	5 ms
Display Average Response Time		8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No
Size, weight, color
Case Depth	1.46 in 3.7 cm 37.1 mm 0.12 ft	1.68 in 4.3 cm 42.7 mm 0.14 ft
Case Weight	3.4 kg 7 lbs	3.77 kg 8 lbs
Case Width with Stand	24.17 in 61.4 cm 614 mm 2.01 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height with Stand	17.52 in 44.5 cm 445 mm 1.46 ft	14.02 in 35.6 cm 356.1 mm 1.17 ft
Case Depth with Stand	7.91 in 20.1 cm 201 mm 0.66 ft	6.54 in 16.6 cm 166 mm 0.54 ft
Case Weight with Stand	3.8 kg 8 lbs
Case Color	Black, Silver
Hardware
Built-in Camera	No	No
Connectivity	1 x DVI-D Dual Link 1 x 3.5 mm Audio In 1 x 3.5 mm Audio Out 1 x HDMI 2.0 1 x DisplayPort 1.2	2 x USB 3.0 (downstream) 1 x HDMI 1.4 1 x DisplayPort 1.2 (in) 1 x DisplayPort 1.2 (out) 1 x USB (Type-C; 65W) 2 x USB 2.0 (downstream)
Audio
Audio Speakers	2 x 2W
Features
Cool Features	DDC2B (DDC/CI compatible) ECO Mode Low Blue Light ZeroFrame Design Super Sharpness Technology Flicker-free technology 6-axis color adjustment AMD FreeSync technology	Low Blue Light Daisy Chain Availability Flicker-free technology
Extra Features		Security lock slot
Ergonomics
Case Width	24.17 in 61.4 cm 614 mm 2.01 ft	21.17 in 53.8 cm 537.8 mm 1.76 ft
Case Height	14.33 in 36.4 cm 364 mm 1.19 ft	12.68 in 32.2 cm 322.1 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	No	Yes
Height Adjustment Range		130 mm 13 cm 5.1181 in 0.4265 ft
Landscape or Portrait Pivot Support	No	Yes
Left Pivot		90 °
Right Pivot		90 °
Left or Right Swivel Support	No	Yes
Left Swivel		45 °
Right Swivel		45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	15 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz - 65 Hz	60 Hz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	Audio cable DisplayPort cable DVI-D cable	DisplayPort cable USB Type-C cable
Certificates and Standards
Licenses	CCC CE cTUVus FCC GOST-R Green Purchasing Law GS J-Moss Green Mark International Energy Star Program ISO13406-2 MPRⅡ NOM PC Recycling PSE (Electrical Appliance and Material Safety Law) RoHS Directive VCCI-B	ENERGY STAR EPEAT RoHS TCO Certified Display
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F	0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level	20 % - 85 %	10 % - 90 %
Internal Storage Temperature		-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity		10 % - 90 %
Max Operating Altitude		5000
Max Storage Altitude		12192

Acer RC271U

Dell P2421DC