The Polar A360 Fitness Tracker in white, size M, features a wrist heart rate monitor. It is suitable for fitness activities such as running and jogging, with dimensions of L 4.65 x W 3.86 x H 2.99 inches. This unisex activity tracker by Polar is designed for sports and comes under the brand's range of fitness tech products.
What I dont like about it, is that it doesn’t use a battery and it must be charged every day. Also that the button must be pushed in order to see the information, one cannot see continuously the Heart Rate and other parameters.
I like better the old models although the band around the chest is uncomfortable.