How clued up are you on CES 2015?

It was a week of exciting announcements at the Consumer Electronics Show (CES) in Las Vegas at the beginning of January. Take our quiz to find out how tech savvy you are on the latest gadgets and gizmos on display at CES.

And if you want to make the most out of your smart tech, talk to an O2 Guru in store or online. Visit to find out more.