Apple LED Cinema Display (27-inch) vs Dell UltraSharp 27 USB-C Hub Monitor (U2721DE)

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LED Cinema Display (27-inch) compared with UltraSharp 27 USB-C Hub Monitor (U2721DE)

	AppleLED Cinema Display (27-inch)	DellUltraSharp 27 USB-C Hub Monitor (U2721DE)
Overview
Released
Released	September 2010	April 2020
Display
Screen size
Screen size	27″	27″
Resolution
Resolution	2560 × 1440 (QHD)	2560 × 1440 (QHD)
Sharpness
Sharpness	109 pixels per inch	109 pixels per inch
Panel
Panel	IPS	IPS
Refresh rate
Refresh rate	60 Hz	60 Hz
Response time (grey to grey)
Response time (grey to grey)	–	5 ms
Brightness (typical)
Brightness (typical)	375 nits (better)	350 nits
Contrast ratio
Contrast ratio	1,000:1	1,000:1
Colour range
Colour range	–	99% sRGB, 99% Rec.709, 85% DCI-P3
DCI-P3 coverage
DCI-P3 coverage	–	85%
Colour accuracy (Delta E)
Colour accuracy (Delta E)	–	Below 2
Screen finish
Screen finish	Glossy	Matte
Shape
Shape	Flat	Flat
Colour depth
Colour depth	Up to 16.7 million colours; panel bit depth is not specified	16.7 million colours
sRGB coverage
sRGB coverage	–	99% sRGB and 99% Rec.709 claimed by Dell
Response time detail
Response time detail	Typical 12 ms without a specified transition; omitted from the grey-to-grey row	5 ms Fast, 8 ms Normal, grey-to-grey
Viewing angles
Viewing angles	178° horizontally and vertically	178° horizontal and vertical
Pixel pitch
Pixel pitch	–	0.233 mm
Eye care
Eye care	Ambient light sensor adjusts brightness automatically	Flicker-free panel and ComfortView low-blue-light mode
Calibration
Calibration	–	Factory average Delta E below 2, according to Dell
Connections
Video inputs
Video inputs	Mini DisplayPort	HDMI, DisplayPort 1.4, USB-C
USB-C charging
USB-C charging	None	Up to 65 W (better)
USB ports
USB ports	3 × USB-A	4 × USB-A
KVM switch
KVM switch	–	No
Ethernet
Ethernet	–	Yes
Speakers
Speakers	Yes	No
Webcam
Webcam	iSight camera with microphone	–
DisplayPort detail
DisplayPort detail	Captive Mini DisplayPort cable; audio support depends on the host Mac	One DisplayPort 1.4 input and one DisplayPort output with MST support.
USB-C detail
USB-C detail	–	USB-C upstream carries DisplayPort 1.4 video and USB 3.1 data, with up to 65 W Power Delivery.
Daisy chaining
Daisy chaining	–	DisplayPort MST output for a second compatible display.
USB hub detail
USB hub detail	Three powered USB 2.0 Type-A ports; upstream USB cable required for data, camera, microphone and speakers. Device charging works without a host connected.	Two standard USB 3.0 downstream ports and two USB 3.0 downstream ports with BC 1.2 charging at up to 2 A.
Audio out
Audio out	–	3.5 mm audio line output
Speaker detail
Speaker detail	Built-in 2.1 system with 49 W output	–
Webcam detail
Webcam detail	Built-in iSight; maker specifications do not publish a megapixel figure	–
Design
Stand adjusts
Stand adjusts	Tilt	Height, tilt, swivel, pivot (better)
VESA mount
VESA mount	Yes	Yes
Height adjustment
Height adjustment	–	130 mm
Tilt
Tilt	–	-5° to 21°
Swivel
Swivel	–	-40° to 40°
Weight with stand
Weight with stand	10.7 kg	–
VESA pattern
VESA pattern	Requires the separately sold Apple VESA Mount Adapter Kit	100 × 100 mm
Size with stand
Size with stand	Current UK specifications give 650 × 491 × 207 mm (width × height × depth). Original manual gives 651.7 × 488.1 × 208.13 mm; both give 10.7 kg.	612.2 × 180 × 390.2–520.2 mm (W × D × H)
Size without stand
Size without stand	–	612.2 × 39 × 355 mm (W × D × H)
Weight without stand
Weight without stand	–	4.19 kg
Controls
Controls	Brightness, colour profile and calibration through Mac OS X Displays preferences; no physical image controls (Macworld)	–
Colours
Colours	Aluminium enclosure with black glass bezel	–
Power and support
Power use
Power use	Maximum 250 W while charging a MacBook Pro; energy saver 1 W or less	22.6 W on, 0.2 W standby, 0.2 W off, 160 W maximum
Power supply
Power supply	Internal power supply; 100–240 V AC, 50–60 Hz	100–240 V AC, 50–60 Hz
Laptop charging
Laptop charging	Separate captive universal MagSafe connector supplies up to 85 W; no USB-C power delivery	–
Software
Software	Original requirement Mac with Mini DisplayPort and Mac OS X 10.6.4 or later. July 2010 announcement specifies September availability.	Dell Display Manager
Certifications
Certifications	ENERGY STAR 5.0; EPEAT Gold in the US, Canada, France, Germany and UK	ENERGY STAR and TCO Certified; EPEAT registration varies by country
In the box
In the box	Display, AC power cord and printed documentation	Stand, DisplayPort cable and USB-C cable