The Fujitsu LifeBook UH900 is an ultra-mobile PC (UMPC) that weighs around 500 grams and measures only 200x105x25mm.

It's designed to be a non-obtrusive, fully functional computer that you can discreetly use to check email and view presentations while on the road. However, the Fujitsu LifeBook UH900 is so small it's conspicuous; computers this small aren't frequently spotted out in public, and this one is bound to turn heads.

It has a shiny body and a chrome trim and we believe it's a product that's firmly aimed at the female half of the tech market. But the Fujitsu LifeBook UH900 really is awkward to use. Its size reminds us of Sony's PlayStation Portable, and you have to use it in a somewhat similar fashion, too.

There is a thumb-pad on the right side that you use to manipulate the cursor, while the left- and right-click buttons are on the left side. Furthermore, if you try to type on the Fujitsu LifeBook UH900 in the same way you would on a regular-sized laptop then you will find the going difficult.

It has a QWERTY keyboard, but there is no palm rest (we didn't expect one on a device this small, but it's still worth pointing out), and the keys are only 14x11mm; the space bar is only 4cm long! There is no way any mere mortal can type quickly on the Fujitsu LifeBook UH900 without having to sift through a tonne of spelling errors.

It's a device that's conducive to slow typing and the most comfortable way to use the Fujitsu LifeBook UH900 is to hold it with one hand and type with the other. If you sit it in your lap, typing will be uncomfortable and you will also probably strain your eyes trying to see the small text on the 5.6in screen, which has a native resolution of 1024x600 pixels.

The screen has multitouch capability and it ships with a little stylus, although you can also use your fingers. It's not a tablet-convertible screen. This means that you pretty much can't write on it. Furthermore, despite being accurate, it's awkward to use the touchscreen for navigation and web browsing when the UMPC is sitting upright with a keyboard in front of it.

The screen has shortcut buttons on either side of it. The three buttons on the left (seen above) were automatically set to launch the Calculator - we were able to change this through the 'LifeBook Application Panel for One Touch Buttons' program - while the two buttons on the right can be used to scroll up and down in a web browser or office applications (these worked straight out of the box).

There is plenty of space on the sides of the screen that seems wasted; we also can't help but think that the touchscreen capability is wasted on such a small unit. Fujitsu should have wowed us with a higher-resolution 8in widescreen panel instead.

So what can the Fujitsu LifeBook UH900 be used for? Well, it has an Intel Atom Z530 CPU on the inside, along with 2GB of RAM and a 64GB solid-state drive. These are the same specifications as the Sony Vaio P-series notebook. That means you can load up Microsoft Office (or any other office suite) to preview documents and presentations.

While the Fujitsu LifeBook UH900 isn't easy to create content with, you can use it for proofing documents and rehearsing presentations before a meeting. There is a proprietary port on the front that can be used to plug in a VGA dongle, and there is also an integrated Bluetooth adaptor and two USB ports, so you can even use the Fujitsu LifeBook UH900 to run your presentations while on location.

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