SONY XPERIA Z

With a 5-inch, 1080p screen, Sony’s new Bravia Engine 2, and a waterproof chassis, this Android-running Sony Xperia Z is one of the finest smarties of recent years. It’s slim too, at just 7.9mm, and can survive a half-hour dunk in the drink.
On imaging duties, there’s a 13-megapixel snapper (capable of 1080p vids), and a 2-megapixel front-facer (that records in 720p), along with burst mode that shoots 10 frames a second. 4G and NFC are on-board too, making this a true mobile powerhouse.

SAMSUNG GALAXY S4

Among new feature is the Galaxy S4's remote technology which allows users to control functions without touching the screen.
"Smart pause" means people can pause a video by looking away from the screen, while "smart scroll" lets users scroll through emails without touching the screen, the S4 detecting the movements of the eyes and wrist.
Users can also change music tracks or accept a call with a simple wave of a hand.
The Galaxy S will be rolled out globally at the end of April, and will be available on several different contracts.