Samsung unveils Galaxy S3

London, May 4 (IANS) Samsung has unveiled its latest flagship phone the Galaxy S3 here.

The phone's most innovative feature is built-in face-tracking and voice control - allowing, Samsung claims, for a more "natural" control system, Daily Mail reported Friday. It was unveiled Thursday.

Other innovations include what Samsung claims is a "more intelligent" lock system, that keeps the screen "awake" when the phone's camera senses eyes watching it, rather than turning it off.

The voice control system is called S Voice - and allows access to weather forecasts, web searches and scheduling, similar to iPhone's Siri system.

Saying "I want to take a picture" launches the camera application - and will work in eight languages at launch. S Voice can also reply out loud - which Samsung claims will allow the system to be used while driving, according to the newspaper.

Available in blue and white, the phone will be launched at the end of May, starting in Europe, with other regions following.