The crammed world of mobile phones have been experiencing a stiff competition these days. Earlier, it was only the technology, which was the main criteria to outplay other competitors. But these days other things have also added like mobile designing or looks. The Samsung X820 is considered as one of the thinnest phones, with an incredible thickness of 6.9 mm. In the process of making it more slender, it has surpassed the other competitors like Motorola's hugely popular RAZR handsets.