The Xperia Z4 meanwhile is somehow shorter than the Xperia Z3 and its edges are more realistic. Back to the Z4 Ultra, it’s also said to come with a 20.7 MP Exmor RS camera, with 25600 ISO, 25 mm G Lens and RAW capture. The phone measures 8.51 mm in thickness and has S Force front surround sound, a feature that was also present on the Xperia Z3.