Report an incorrect priceFound it cheaper elsewhere?
Show All Prices- Less
Searching for international prices ...
Assumed Exchange Rates
Searching for prices in ...
8 Reasons For
The Z23n is one the most popular flatpanel monitor currently available for purchase.
HP PC Monitors Have Good Reviews
We calculated the average ratings for all HP PC screens and specifically for HP medium monitors and found that in both cases HP had good ratings compared to other manufacturers.
Fairly Wide Horizontal Viewing Angle
The HP Z23n has a quite wide horizontal viewing angle (178 degrees) compared to most of the other similar spec PC displays that were launched in the last year. Newly released similar spec PC monitors have horizontal viewing angles of between 89° and 180°, and the average horizontal viewing angle is 170°.
Quite Low Power Consumption When Off
The HP Z23n has a fairly low power consumption when off (only 0.29 Watts) compared to most of the other medium monitors that came out in the last 12 months. The power consumptions when off of medium monitors that are a comparable age to the Z23n range from 0.005W to 4.3W.
Fairly High Maximum Height Adjustment
At 150 millimeters, the HP Z23n has a quite high maximum height adjustment compared to most of the other new PC monitors. The maximum height adjustments of recently released PC displays range from 20mm to 1,200mm, and the average maximum height adjustment is 140mm.
Medium monitors that have been on the market for the last year have widths of between 370mm and 960mm, and the average width is 590mm. With a width of only 520.8 millimeters, the HP Z23n is one of the narrower recently released medium monitors amongst medium monitors of this age.
Other flatpanel monitors with a wider width that you might want to look at include the XB2283HSU-B1DP (£125.45) (505mm), or the X2283HSU-B1DP (£102.88) (505mm) both from iiyama which is also cheaper.
+3 More reasons for
Similar spec flatpanel monitors that have been available for a comparable time to the Z23n have weights of between 2.6g and 33kg, and the average weight is 4.8kg. At only 3 kilograms, the HP Z23n is fairly light compared to most of the other medium monitors that have been on the market for around the same time as the Z23n.
The average height of medium monitors that have been on the market for a similar time to the Z23n is 360mm. The HP Z23n is one of the shorter similar spec PC displays that are a comparable age to the Z23n (only 312 millimeters) amongst medium monitors of this age.
10 Reasons Against
Does Not Have a Built-In Speaker
Most of the other recently released PC monitors have a built-in speaker, however the HP Z23n does not have a built-in speaker.
We think you might also be interested in other LCD screens which also have a built-in speaker including the iiyama B2480HS-B2 (£138.55), or the Philips 221B6LPCB (£127.14).
Does Not Have an Integrated Card Reader
Most medium monitors that were launched around the same time as the Z23n do not have an integrated card reader. The HP Z23n is no exception to this as it too does not have an integrated card reader.
Other PC displays which also have an integrated card reader that you might also want to consider include the DELL U2413 (£279.00) which also has a higher rating.
Not 3D Compatible
The HP Z23n is not 3D compatible, although it is worth noting that most of the other latest comparable spec LCD screens are also not 3D compatible.
Does Not Have a Built-In Camera
The HP Z23n does not have a built-in camera, although this is within the context that most of the other comparable spec flatpanel monitors that have been available for around the same time as the Z23n also do not have a built-in camera.
+7 More reasons against
Only 640 X 480 (VGA) Graphics Resolution
The highest resolution of the HP Z23n is 640 x 480 (VGA). That's 85% less resolution than the most common graphics resolution of 1920 x 1080 (HD 1080). The resolution of all latest PC monitors ranges from 720 x 400 (worst) to 3840 x 2160 (best).
Only 1920 X 1080 Pixels Display Resolution
This PC monitor has a display resolution of 1920 x 1080 pixels, which is typical of many LCD screens that were released in the last 12 months.
We think you might also be interested in some of the alternative PC displays that have a display resolution of 1920 x 1080 pixels currently available including cheaper LCD screens such as the iiyama E2282HV (£107.27), or the Samsung S24F350FHU (£123.97).
If the display resolution of this HP flatpanel monitor is not many enough for you then you might want to consider the DELL U2413 (£279.00) (1920 x 1200) which is also higher rated.
Only 1000:1 Typical Contrast Ratio
This PC monitor has a 1000:1 typical contrast ratio, which is the most commonly found typical contrast ratio on medium monitors that have been available for a comparable time to it.
Very Small Viewable Height
The HP Z23n has one of the smaller viewable heights (only 286.416 millimeters) amongst medium monitors of this age. The viewable heights of medium monitors that were launched around the same time as the Z23n range from 250mm to 69,000mm, and the average viewable height is 770mm.
Very Small Display Diagonal
Across all the comparable spec PC displays that are a similar age to the Z23n the screen sizes range from 52cm to 690cm, and the average display diagonal is 68cm. The HP Z23n has a fairly small display diagonal (only 58.4 centimeters) compared to most of the other recently released similar spec LCD screens.
Fairly Slow Response Time
Across all the latest comparable spec PC displays the response times range from 1ms to 20ms, and the average response time is 5.2ms. With a response time of 7 milliseconds, the HP Z23n has a fairly slow response time compared to most of the other medium monitors that were launched around the same time as the Z23n.
3 Other reasons to consider the HP Z23n
Running Costs Are OK
The energy efficiency classification of this PC screen is A, and the Z23n is typical compared to the other 371 new medium monitors that we have looked at for running costs. Based on average energy prices, we estimate the Z23n will cost £40 over 5 years to run.
LED Display Type
This LCD screen has an LED display type, which is typical of many latest PC monitors.
There are a number of other flatpanel monitors that have an LED Display currently available that you might also want to look at including a cheaper flatpanel monitor such as the iiyama E2282HV (£107.27) or you might consider a higher Rating flatpanel monitor such as the DELL U2413 (£279.00).
5000000:1 Dynamic Contrast Ratio
The HP Z23n has a maximum contrast ratio of 5000000:1. That's 95% less contrast ratio than the most frequently found dynamic contrast ratio of 100000000:1.
There are a number of alternative flatpanel monitors that have a 5000000:1 dynamic contrast ratio currently available which you might also want to consider including cheaper PC monitors such as the 22MP48D (£85.48), or the 22MT47D both from LG.
If the contrast ratio of this PC screen is too low for you then you might want to consider the SE2416H (£109.99) (8000000:1 and cheaper), the S2216H (£99.00) (8000000:1 and cheaper), or the S2216M (£89.37) (8000000:1 and cheaper) all from DELL.
+1 Other reason
1920 x 1080
Dynamic Contrast Ratio
640 x 480 (VGA), 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 720 (HD 720), 1280 x 800, 1280 x 800 (WXGA), 1440 x 900, 1440 x 900 (WXGA+), 1600 x 900, 1680 x 1050 (WSXGA+)
Vertical Scan Range
50 - 60
Horizontal Scan Range
30 - 80
0.248 x 0.248
Display Colour Count
Vertical Viewing Angle
Horizontal Viewing Angle
Typical Contrast Ratio
Native Aspect Ratio
Supported Number of Colours Display
16.78 million colours
Ports & Interfaces
USB 2.0 Port
VGA (D-Sub) Port
USB Type-A Downstream Port
USB Hub Version
Built-In USB Hub
0 - 90
Maximum Height Adjustment
-5 - 30
Swivel Angle Range
-45 - 45
Cable Lock Slot
Energy Efficiency Class
Power Consumption When Off
Typical Power Consumption
Standby Power Consumption
Annual Energy Consumption
Maximum Power Consumption
AC Input Frequency
50, 50/60, 60
AC Input Voltage
100, 100-240, 24, 240
Relative Humidity Storage Range
5 - 95
Relative Humidity Operating Range
20 - 80
Storage Temperature Range
-20 - 60
Operating Temperature Range
5 - 35
Energy Star Certificate
Weight & Dimensions
Weight With Stand
Height With Stand
Depth With Stand
Width With Stand
Hours of Use Per Day: hours
Show running costs over: years
Electricity cost when switched on
Electricity cost when on standby
@ £0.139 per kwh - Edit electricity price and usage
kwh per hour
kwh per hour left on standby
Electricity price £per kilowatt hour
Annual electricity price inflation %
Hide electricity usage and price
Water cost when switched on
@ £0.003474 per litre - Edit water usage and price
litres per hour
Water price £per litre
Annual water price inflation %
Hide water usage and price
Submit Energy Consumption Figures
Total running cost over 5 years
Running costs for this PC monitor have been estimated based on other similar PC monitors. If you know how much electricity and water the HP Z23nuses then please let us know by entering those figures in the boxes above.
Running this PC monitor over 5 years will generate 0.2 tonnes of carbon dioxide (CO2).
To offset that much CO2 you would need to plant 6 tree seedlings and grow them for 10 years.
Previous and future annual running costs of the HP Z23n assuming future electricity price inflation of 0.0600% per year. Edit inflation assumptions
hp z23, m2j79a, hp z23n, m2j79at, m2j79ata, code z23, code z23n, m2j79atab, hp p232222, hp m2j79a8, hp p233778, m2j79atabu, hp 250cdm2, hp m2j79a4, m2j79a4abu, hp inc z23, code m2j79, hp c7xlza00, hp inc z240, hp m2j79a4a, hp inc z23n, code m2j79a, hp p232222p, hp m2j79a8a, hp p233778p, hp c7xlzs00, code m2j79at, hp inc m2j79, hp m2j79a8ab