The Polar A360 Fitness tracker is the first of its kind to feature a wrist-based heart rate monitor and Polar's exclusive personalised training guidance. Achieve your training goals with Polar Smart Coaching that allows you to plan your training, tailoring it to your next big event. A 5-min fitness test keeps you on track so you can see just how far you have come. Sport- specific feedback calculates speed, distance and calories burned across a range of activities from walking through to running and other intense activities- even sleeping!