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Compare 3 products

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Dell P2421 Monitor
Dell P2421
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Dell U2415 Monitor
Dell U2415
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HP Z24i Monitor
HP Z24i
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Editiorial reviews
1
1 editorial reviews
The best Dell monitor we've tested is the Dell U2723QE. It's part of their high-end UltraSharp lineup packed with a ton of office features, making it the best Dell monitor for work.Read more
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5
3.3 out of 5
3 user ratings
5 stars
0 %
4 stars
66 %
3 stars
0 %
2 stars
33 %
1 stars
0 %
Read editorial reviews
2
2 editorial reviews
The HP DreamColor Z24x G2 is a somewhat pricey 24-inch monitor that delivers excellent color accuracy and precise grayscale performance.Read more
From the overall design, performance tuning, and extra features, each brand does things a bit differently. So how do the best monitor brands available in the U.S. stack up against each other?Read more
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User rating
40
4.0 out of 5
40 user ratings
5 stars
32 %
4 stars
37 %
3 stars
30 %
2 stars
0 %
1 stars
0 %
56
3.8 out of 5
56 user ratings
5 stars
32 %
4 stars
30 %
3 stars
23 %
2 stars
14 %
1 stars
0 %
49
3.9 out of 5
49 user ratings
5 stars
32 %
4 stars
32 %
3 stars
24 %
2 stars
10 %
1 stars
0 %

General

Screen size24.1 in24.1 in24.0 in
Brightness300.0 cd/m²300.0 cd/m²300.0 cd/m²
Aspect ratio16:1016:1016:10

Design

Colour of productBlack
  • Black
  • Black,Silver
Black
Panel designFlatFlatFlat
Built-in USB hubyesyesyes
Built-in cameranonono
Touchscreen
N/A
nono
Screen surface
N/A
MatteMatte
Built-in speakers
N/A
nono

Dimensions

Height adjustment5.12 in4.53 in4.72 in
Height (without stand)13.76 in13.8 in14.37 in
Height with stand19.72 in20.39 in20.67 in
Depth (with stand)6.54 in8.07 in9.37 in
Depth (without stand)1.74 in1.8 in2.52 in
Width (with stand)20.91 in20.95 in22.02 in
Weight0.18 oz223.64 oz245.51 oz
Height (min-max)
N/A
402.9 - 517.9525 - 645
Weight (without stand)
N/A
9.37 lb10.43 lb

Connectivity

DVI Portyesnoyes
HDMIyesyesno
HDMI ports quantity12
N/A
HDMI version1.4
N/A
N/A
Headphone outputnoyesno
VGA (D-Sub) ports quantity1
N/A
1
DisplayPort version1.21.21.2
Analogue 3.5mm input
N/A
00
Number of USB 2.0 port
N/A
05
Number of USB 3.0 ports
N/A
50
USB connectors (total)
N/A
55
Component input (YPbPr/YCbCr)
N/A
nono
Number of component inputs
N/A
00
Composite input
N/A
nono
Number of composite inputs
N/A
00
DisplayPort
N/A
yesyes
Number of HDMI inputs
N/A
2
N/A
S-video input
N/A
nono
Number of s-video inputs
N/A
00
Thunderbolt
N/A
nono
USB for video
N/A
nono
VGA in
N/A
noyes
Number of DisplayPort inputs
N/A
21
Number of DisplayPort outputs
N/A
10
MHL
N/A
yes
N/A
DVI-D ports quantity
N/A
N/A
1
HDCP
N/A
N/A
yes
Type of DisplayPort connector
N/A
N/A
Standard

Image properties

Supported graphics resolutions
  • 640 x 480
  • 720 x 400
  • 800 x 600
  • 1024 x 768
  • 1152 x 864
  • 1280 x 1024
  • 1600 x 1200
  • 1920 x 1200
1920x1200
  • 1024x768
  • 1280x1024
  • 1280x800
  • 1400x900
  • 1600x1200
  • 1680x1050
  • 1920x1080
  • 640x480
  • 720x400
  • 800x600
Refresh rate60.0 Hz60.0 Hz60.0 Hz
HD typeWUXGAFull HD
N/A
Display number of colours16.7 million colours16.78 million colours16.78 million colours
Display technologyLCDLEDLCD
BacklightLEDLED backlightLED backlight
Panel typeIPSIPSIPS
Response time8.0 ms6.0 ms8.0 ms
Viewing angle (horizontal)178.0 °178.0 °178.0 °
Viewing angle (vertical)178.0 °178.0 °178.0 °
Maximum resolution
N/A
1920 x 1200 px1920 x 1200 px
Colour depth (per channel)
N/A
8.0 bit
N/A
Colour gamut (Adobe RGB)
N/A
91.0 %
N/A
Colour gamut (NTSC)
N/A
72.0 %
N/A
Dynamic contrast ratio
N/A
2000000:15000000:1
Contrast ratio
N/A
1000:11000:1
Response time (GtG)
N/A
6.0 ms8.0 ms
Response time (BtW)
N/A
19.0 ms12.9 ms
Image delay
N/A
< 7.712.3 - 20.5
Picture-in-Picture (PIP)
N/A
nono
Pixel size
N/A
0.01 in0.01 in

Features

Pivot functionyesyesyes
Swivelyesyesyes
Cable lock slotyesyesno
Ascendable and submersible
N/A
yesyes
Tiltable
N/A
yesyes
Memory card reader
N/A
nono
Flicker free
N/A
yes
N/A
Plug and Play
N/A
N/A
yes

Compatibility

VESA mountyesyesyes
Type of VESA mount100x100mm100x100mm100x100mm
3D support (3D-Ready)
N/A
nono
Adaptive synchronization
N/A
nono
HDR
N/A
nono

Power

Energy efficiency classDA+
N/A
Power consumption (standby)0.2 W0.5 W0.5 W
Power consumption (typical)14.8 W23.0 W36.0 W
Operational power consumption
N/A
< 2336 - 55
Connecting 9V/12V/14V
N/A
N/A
None

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