Another day, another Motorola X rumor. Unlike previous rumors claiming the Motorola X will be a series of phones rather than a singular phone, the latest rumor shows specs for a single Motorola X phone. PhoneArena received a tip from an anonymous source stating that the Motorola X phone will have a 4.8-inch display made out of sapphire, which is said to be three times tougher to break than Gorilla Glass. Other specs mentioned are a quad-core Qualcomm Snapdragon 800 CPU clocking in at 2 GHz and a 4,000 mAh battery. The device is said to also be water resistant with a design that includes a carbon fiber back and rubber bumpers on the corners. Whether or not there is any legitimacy to this rumor remains to be seen, but if they are indeed true, this is sure to be a very impressive smartphone.