The all in one touch-screen market has really begun to take off in quite a spectacular fashion ViewSonic, AOC, Acer and Dell have all produced fine examples of what can be achieved with this fairly new combination of ARM-based screens.

The Philips S231C4AFD is by no means an exception, but it does appear to rise above the expectations of its fellow AIOs.

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This is a 23" IPS LCD screen with a two-point touch optical panel. It measures 563 x 393 x 77mm and weighs a 5kg. The screen itself is very good, with full 1080p resolutions, 20,000,000:1 Smart contrast ratio and viewing angles of 1780 across both the horizontal and vertical.

The AIO part of the equation feature an impressive ARM based quad-core Nvidia Tegra T33 at 1.6GHz with 2GB of DD3 memory and 8GB EMMC flash memory. Android 4.2 is installed by default, and thanks to the specifications of the system, it runs along without any hint of a problem.

Connectivity is generally good too, with VGA, MHL- HDMI and Ethernet to get you up and running, along with an SD card slot, two USB ports, PC audio-in, a headphone jack and a one-megapixel webcam. Naturally there's also built-in wireless 802.11 b/g/n, but there's a surprising lack of Bluetooth connectivity, which seems a little bit of an odd omission.

The screen itself is very good. The image is clear, sharp and viewable from a multitude of angles. The colors are also good, vibrant and not quite as drained or as soft as other AIOs we've tried in the past. As a multimedia monitor, using Android, it's more than capable for delivering the goods. When used as a monitor for Windows 8.1, it's just as good, if not better, thanks to the more advanced playback programs available to Windows.

What we particularly liked about the Philips S231C4, though, was the fact that it's quite light, and as a result it feels easier to set up and manipulate into different positions on the desk. Likewise, the kickstand is generally better than the norm and features a spring-loaded mechanism to help you get it into position faster and easier than the competition.

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However, the glassy black front of the monitor is quite reflective and distracting if you're working under a light. Also, due to the fact that this is a touch optical panel, the screen bezel is quite thick and prominent, which in turn makes the screen size feel smaller than it actually is.

Nevertheless, the touch-screen capabilities of the 5231C4 aren't in question. The many gestures, swipes and other such touchrelated things are all handled without any problems or missing interactions. Windows 8.1 works a treat with this Philips monitor as a touch-screen, and the Android mode thankfully doesn't have any problems either.

On the whole, the Philips 5231C4AFD is a perfectly good ell-in-one system with plenty of processing power and a stylish look to it. In the default Android OS mode, it works really well as a stand-alone device and wouldn't look at all out of place on the desks of an office. Similarly, when hooked up to a touch-capable OS like Windows 8.1, its operation is perfectly fine.

If you're in the market for a very good AIO, then for around 330 the Philips 5231C4AFD would certainly be a good investment and one that will cater for all possibilities.