Photos: Samsung U600, U300, U100 and U700

If it's specs you're after then the U700 will really impress you. Not only is it a skinny 12mm thick, it also packs high speed mobile broadband (HSDPA), so you can download data at up to 3.6Mbps.

Other features include a 3.2-megapixel camera with auto-focus, a full HTML browser, video-calling capability, an MP3 player, stereo Bluetooth, an expandable microSD slot and a document viewer.

This is the one we're most excited about, as not only is it a feature-packed mobile phone but you can also hook it up to your laptop and use it a high-speed modem, making it one of the most compact all-in-one mobile data solutions out there.

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