This week, all the buzz in the tech world is the Consumer Electronics Show in Las Vegas and stealing the show will be devices you can wear. These devices can be worn on all sorts of your body parts, help you track everything from your fitness, by Fitbit, to the new Google Glass which you can wear to add a digital layer to the real world.
When the FIFA circus rolls into Rio next year, it might just change the way we watch television. The final will be produced in 4K ultra-high definition. And if the World Cup has its usual uplifting effect on high-end TV sales, this could be the moment 4K starts to go mainstream. But what is 4K TV and why should we care?