A 'listening' hairbrush and emotional cars: the futuristic trends of CES 2017

Digital interactivity has top billing at the Las Vegas event. But how many people really want a toothbrush that films the inside of their mouth as they clean?

If this year's CES continues to predict future tech trends, then we can soon expect to have emotional relationships with our cars, virtual reality devices so realistic you need a sick bag, and products so pricey most people won't be able to afford them.

One of the main themes this year at the premier electronics convention, which is held annually in Vegas, is that in the future everything will have a relationship with everything.