Product details:

With Polar A370 you can track your daily activity and sleep as well as your training sessions to get a complete picture of your overall fitness based on the intersection of activity, rest and recovery. It's for anyone looking for a sleek, light-weight and waterproof fitness tracker. Polar A370 adds continuous heart rate tracking and advanced Polar Sleep Plus analytics to the mix. Furthermore, GPS via mobile enables you to track distance, speed and route.