Videos produced by Georgina Brazier and Sarah Johnson.
Follow on the BR producers on Twitter @BRproducers
Nigel Clarkson, commercial director of Weve, end his time at the Mobile World Congress (MWC) focusing on location, connected devices and 5G.
After eight years of visiting the Mobile World Congress, Stephen Jenkins, vice president of marketing, EMEA at Millennial Media, tracks the changes.
David Beckham plays a pool hustler in a short film promoting H&M's Modern Essentials spring 2015 collection.