Sony have sprinkled the usual features over the Xperia Z, where it again features their beautiful Timescape UI, something I loved from the Xperia TX, which we reviewed a couple of weeks ago now.
I've gone over the Timescape UI in my Xperia TX review, so I'll just quickly skim over some of the things I enjoyed on the Xperia Z. The multi-tasking pop-up is great, and actually quite useful. We have some options down the bottom for the calculator, timer, some notes and a voice recorder. You can edit these shortcuts, too, which is nice.
To the right of the multi-tasking screen, we have your last-used apps. From here, it's like any multi-tasking UI overlay, you can visit the apps you were just using and either tap into them or swipe-to-close.
Another nice feature is the near-exclusive of the Xperia Z being water-proof. These days, most smartphones aren't water-proof, but the design of the Xperia Z itself has been built from the ground up to be water-proof. Each flap to access the ports on the phone is designed to keep water out, which is impressive.
The above shots show off some of the water-proof elements of the phone with their ports opened fully.