Featuring the same aluminum and glass design as the iPhone 5, including the same 4″ screen size, dimensions ... and longer-running iPhone 6 or 6 Plus. The iPhone 5s is sold only in 16GB ...

versus the iPhone 5s’s 7.5mm and the iPhone 6 Plus’s 7.1mm. It is easier to fit in a pocket than the iPhone 6 Plus, which some users will like.