Sony is certainly putting its all into this smartphone stuff. Hot on the heels of the Xperia Z is the reboot, the Z1. On the surface it looks quite similar, there are a few changes. The first is the improved 20.7 megapixel camera with a Sony G lens and a larger sensor. The power has been given a shot in the arm too, with the quadcore Snapdragon 800 processor.
The Z1 is waterproof and dust resistant, and add in a brighter display and it’s an all-round better phone.
Sonymobile.com