A smartphone that won't leave a dent in your pocket

For all its impressive functionality, there's one smartphone specification that has long tipped the scales in the wrong direction: the small matter of size. Luckily, there's now a way to fit all those telephonic essentials into a device that (genuinely) fits in the palm of your hand. It's called the X10 Mini Pro.

Sony Ericsson's miniature multitasker – the latest addition to its Xperia family – squeezes a reassuringly rigid QWERTY keypad into its 90 x 52 x 17mm footprint, along with an Android operating system, blissfully simple email and social networking features, 5MP camera and flash, touch screen, high speed internet, aGPS and expandable storage.

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The MP3 player/FM radio also punches well above the device's 120g weight, providing the sort of detailed acoustics many of its rivals lack. Our only gripe would be that compiling music playlists remains a little too fiddly for our liking, but it doesn't detract from the fact that this is a tiny phone with enormous potential.