This sleek device may be Fitbit’s slimmest to date, but it sure packs a punch. The Alta HR not only tracks your heart rate, sleep stages and fitness levels but intelligently organises activity data by type. The minimalist touchscreen also displays smartphone notifications, as well as a customisable clock and various other statistics. Best of all, the Wareable Tech Awards’ 2017 Fitness Tracker of the Year comes in six different colours, with bands available in metal, leather and more.