CES 2014: Wearable fitness technology fun run A major theme at the Consumer Electronics Show (CES) in Las Vegas this year will be wearable technology - especially gadgets that track fitness levels. Ahead of the show's opening, the BBC technology team invited some of the many companies and enthusiasts of wearable tech on a fun run around the city. Video journalist: Dave Lee You can follow Dave Lee on Twitter at @DaveLeeBBC. With thanks to Tim Kelly and the Las Vegas Running Company