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HP Z23
HP Z23
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HP Z23 PC Monitor

23" 1920 X 1080 5000000:1 LED Nov 2015
Display Diagonal Display Resolution Contrast Ratio (dynamic) Display Release Date £61.53 Electricity cost over 5 years
Has a built-in USB hub
Good brand
Does not have a built-in speaker(s)

Available from international sellers only

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Running Costs Are OK

This PC screen is rated A for energy efficiency, and based on average energy prices and usage levels we estimate that the Z23 will cost £62 over 8 years to run, which is typical compared to the other 648 PC displays of a similar type and age.

Ports & Interfaces

Has a Built-In USB Hub

The HP Z23 has a built-in USB hub. Most of the other PC monitors of this age and type do not have a built-in USB hub.

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Released Over a Year Ago

It was November 2015 when HP released the Z23.


Does Not Have a Built-In Speaker(s)

The HP Z23 does not have a built-in speaker(s). Most of the other comparable spec LCD screens that were launched around the same time as this PC monitor do have a built-in speaker(s).

It is worth also looking at other PC screens which also have a built-in speaker(s) including the AOC E2470SWDA, or the Philips BDM3275UP/75.

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Good Brand

Based on 2,072 owner and expert reviews (including 394 verified purchases), HP has good ratings for its PC monitors. HP also has good ratings specifically for its medium monitors compared to other brands. 91% of those that bought a HP PC monitor would recommend the product that they bought to other buyers.


Has an Energy Star Certified

The HP Z23 has an Energy Star certified, as do most of the other PC screens of a comparable type and age to this PC screen.

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Only 1920 X 1080 Pixels Display Resolution

This LCD screen has a display resolution of 1920 x 1080 pixels, which is the most frequently found display resolution on medium monitors that were launched more than a year ago.

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Has an HDCP

The HP Z23 has an HDCP, as do most of the other flatpanel monitors of this age and spec.

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Fairly Slow Response Time

The fastest response time of LCD screens that came out more than a year ago is 1ms, the slowest is 25ms, and the average response time is 5.4ms. With a response time of 7 milliseconds, the HP Z23 has one of the slower response times amongst PC monitors of this age.

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Product Identifiers

Manufacturer Part Numbers m2j79a4aba, m2j79a4uuz, m2j79a4abu, m2j79atabu
Barcodes 00889296505624, 00889296505631, 00889296505648, 00889296505655, 00889296505662, 00889296505679, 00889296505686, 00889296505693, 00889296505709, 00889296505716, 00889296505723, 00889296505730, 00889296505747, 00889296505754, 00889296505761, 00889296505778, 00889296505785, 00889296505792, 00889296505808, 00889296505815, 00889296505822, 00889296505839, 00889296505846, 00889296505853, 00889296505860, 00889296505877, 00889296505884, 00889296505891, 00889296533764, 00889899389089

HP Z23 Review Sources

To prepare this HP Z23 review we compared this PC monitor to 3,052 other models. For each PC monitor that we compared, we collated thousands of pieces of information including technical specs, reviews, and prices. In total we analysed 691,904 product attributes, 78,839 PC monitor reviews and 7,829,100 historical PC monitor prices from 203 PC monitor retailers. We then picked out the standout features of this PC monitor compared to the other models as well as any areas where this PC monitor is lacking.

Other PC Monitors to Consider

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Better energy efficiency rating
Two HDMI ports
9W lower maximum power consumption
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Significantly shallower depth with stand
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1ms faster response time
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Lenovo T2454p


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Five USB Type-A downstream ports
Shorter height with stand
A lot higher power consumption when off
2ms faster response time
Brighter display brightness
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One less USB Type-A downstream port


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Two HDMI ports
Brighter display brightness
0.91W higher power consumption when off