The slim and sexy Nokia 5310 XpressMusic phone has been around for quite a while now, and after all this while T-Mobile has finally decided to give it’s users some variety in the music phone segment by finally launching it. As we all know, this sleek phone comes with dedicated music keys and a memory expandability of up to 4GB. Stereo Bluetooth, a two megapixel camera, FM radio and 3.5 mm headphone jack are the other notable features that are present in this phone. One issue this phone has faced is that of very poor battery back up. That makes it all the shocking as Nokia advertises a long music playback time on this music phone. So, music buffs need to tread with caution. Other than the battery back up issue, the Nokia 5310 is a very competent performer that many buy just for the style it manages to bring to the table. To sweeten this seemingly sour-looking deal, T-Mobile is offering the Nokia 5310 pretty cheap at $49.99 that comes tagging with it a two year contract.