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Compare 3 products

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Asus PQ321QE Monitor
Asus PQ321QE
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HP E231 Monitor
HP E231
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HP Z23i Monitor
HP Z23i
Available colors
Editiorial reviews
4
4.0 out of 5
4 user ratings
5 stars
50 %
4 stars
25 %
3 stars
25 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
2
2 editorial reviews
We go eyes-on with new models from HP, NEC, and Samsung, whose expansive screens and pivoting hinges give you more options for viewing content or images.Read more
HP EliteDisplay E201 / E221 / E231 (Monitor): 4.8 out of 5 stars from 4 genuine reviews on Australia's largest opinion site ProductReview.com.au.Read more
Read editorial reviews
1
1 editorial reviews
The HP ZR2330w is a versatile 23-inch business monitor offering solid IPS color quality, wide viewing angles, and an ergonomic stand. However, it has trouble displaying the lightest and darkest shades of gray and uses older and slower USB technology.Read more
Read editorial reviews
User rating
4
3.5 out of 5
4 user ratings
5 stars
0 %
4 stars
50 %
3 stars
50 %
2 stars
0 %
1 stars
0 %
37
4.4 out of 5
37 user ratings
5 stars
51 %
4 stars
37 %
3 stars
10 %
2 stars
0 %
1 stars
0 %
43
4.2 out of 5
43 user ratings
5 stars
44 %
4 stars
30 %
3 stars
23 %
2 stars
2 %
1 stars
0 %

General

Screen size31.5 in23.0 in23.0 in
Brightness350.0 cd/m²250.0 cd/m²250.0 cd/m²
Aspect ratio16:916:916:9

Design

Colour of productBlackBlackBlack
Panel designFlat
N/A
Flat
Built-in USB hubno
N/A
yes
Touchscreenno
N/A
no
Built-in camerano
N/A
no
Screen surfaceMatte
N/A
Matte
Built-in speakersyes
N/A
no

Image properties

Maximum resolution3840 x 2160 px
N/A
1920 x 1080 px
Supported graphics resolutions3840x2160
N/A
  • 1024x768
  • 1280x1024
  • 1280x720
  • 1440x900
  • 1600x900
  • 1680x1050
  • 1920x1080
  • 640x480
  • 720x400
  • 800x600
Refresh rate60.0 Hz
N/A
60.0 Hz
HD type4K Ultra HD
N/A
Full HD
Display number of colours1.073 billion colours
N/A
16.78 million colours
Colour depth (per channel)10.0 bit
N/A
8.0 bit
Colour gamut (NTSC)80.0 %
N/A
72.0 %
Contrast ratio800:1
N/A
1000:1
Display technologyLED
N/A
LED
BacklightLEDLED backlightLED backlight
Panel typeIGZO
N/A
IPS2
Response time (GtG)8.0 ms
N/A
8.0 ms
Response time8.0 ms
N/A
8.0 ms
Picture-in-Picture (PIP)no
N/A
no
Pixel size0.01 in
N/A
0.01 in
Viewing angle (horizontal)176.0 °170.0 °178.0 °
Viewing angle (vertical)176.0 °
N/A
178.0 °
Dynamic contrast ratio
N/A
N/A
5000000:1

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