Announced last week, Android Wear is Google’s answer to the relentless march of wearable tech. It will give you fast access to everything from mapping information and traffic data to access to your messages and calls when you link up with your smartphone.

Fitness is also expected to be a big part of the system. Initially aimed at smartwatches, this software is likely to make its way into other wearable devices in the future. In the meantime, you'll have to be content with watches from the likes of LG and Samsung.

Android.com/wear