Comparison between Acer XB271HK vs Dell UltraSharp U2415

General Info
Model Number	Acer XB271HK	Dell UltraSharp U2415

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2015	2014
Brand	Acer	Dell
Model Number	XB271HK	UltraSharp U2415
Alias	XB271HK bmiprz
Display
Screen Size Class	27" (inches)	24" (inches)
Diagonal Size	27 in 68.6 cm 685.8 mm 2.25 ft	24.06 in 61.1 cm 611 mm 2 ft
Screen Width	23.47 in 59.6 cm 596.16 mm 1.96 ft	20.41 in 51.8 cm 518.4 mm 1.7 ft
Screen Height	13.2 in 33.5 cm 335.34 mm 1.1 ft	12.76 in 32.4 cm 324 mm 1.06 ft
Display Manufacturer	AU Optronics	LG Display
Display Type	AHVA IPS	AH-IPS
Display Bit Depth	10 bits	8 bits (6 bits + FRC)
Frame Rate Control	No	Yes
Max Number of Colors	1073741824	16777216
Bits	30	24
Screen Aspect Ratio	16:9	16:10
Screen Resolution	3840 x 2160	1920 x 1200
Screen Pixel Pitch	0.155 mm	0.27 mm
Screen Pixel Density	163 ppi	94 ppi
Screen-to-Body Ratio	88.3 %	90.02 %
Backlight Source	W-LED	W-LED
sRGB	100 %	99 %
NTSC 1953	72 %	72 %
Screen Brightness	300 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast		2000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	4 ms	12 ms
Display Minimum Response Time	4 ms	6 ms
Display Average Response Time	8 ms	8 ms
Display Maximum Response Time	12 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	2.4 in 6.1 cm 61 mm 0.2 ft	1.8 in 4.6 cm 45.7 mm 0.15 ft
Case Weight	4.6 kg 10 lbs	4.25 kg 9 lbs
Case Width with Stand	24.2 in 61.5 cm 614.7 mm 2.02 ft	20.95 in 53.2 cm 532.2 mm 1.75 ft
Case Height with Stand	15.8 in 40.1 cm 401.3 mm 1.32 ft	15.86 in 40.3 cm 402.9 mm 1.32 ft
Case Depth with Stand	10.57 in 26.8 cm 268.4 mm 0.88 ft	8.07 in 20.5 cm 205 mm 0.67 ft
Case Weight with Stand	7 kg 15 lbs	8.35 kg 18 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x HDMI 1.4 1 x DisplayPort 1.2 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream)	2 x HDMI 1.4 (MHL) 1 x DisplayPort (Input mini) 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out 1 x DisplayPort (Output MST) 5 x USB 3.0 (downstream) 1 x USB 3.0 (upstream)
Audio
Audio Speakers	2 x 2W
Features
Cool Features	Flicker-free technology Nvidia G-SYNC Technology
Extra Features		Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	24.2 in 61.5 cm 614.7 mm 2.02 ft	20.95 in 53.2 cm 532.2 mm 1.75 ft
Case Height	14.5 in 36.8 cm 368.3 mm 1.21 ft	13.8 in 35.1 cm 350.6 mm 1.15 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	115 mm 11.5 cm 4.5276 in 0.3773 ft
Landscape or Portrait Pivot Support	Yes	Yes
Left Pivot	90 °	90 °
Right Pivot	90 °	90 °
Left or Right Swivel Support	Yes	Yes
Left Swivel	30 °	45 °
Right Swivel	30 °	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	35 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	56 Hz - 76 Hz
Horizontal Digital Frequency		30 kHz - 83 kHz
Accessories
Extras	DisplayPort cable HDMI cable USB 3.0 cable	DisplayPort cable - mini-DP to DP Factory calibration report USB 3.0 upstream cable
Certificates and Standards
Licenses	ENERGY STAR ErP TCO Certified Displays 6.0	ENERGY STAR 6.0 Epeat Gold RoHS Compliant TCO Certified Displays
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 XB271HK

Dell UltraSharp U2415