CES 2015: The key trends to look out for

The Consumer Electronics Show is about to get underway in Las Vegas, unleashing thousands of new gadgets upon the world.

One of the big themes of the year is expected to be kit that takes information about the world around you and your actions in it, and turns it into data.

Sean DuBravac, chief economist of CES' organiser, the US Consumer Electronics Association, explains why the trend could change our lives for the better.