Although the company has yet to confirm as much, numerous rumors over the past couple of months have claimed that Apple is planning to release a 4-inch iPhone sometime next year, and now we have a massive leak out of China to give us an idea of what the smartphone will be like. The leak comes from sources within Foxconn, and claim that production of the device has already started. Apparently, the design will be almost identical to the iPhone 5S, but the smartphone will feature a number of hardware improvements, as well as support for Touch ID.