Polar H10 heart rate sensor has its memory preconfigured for one training session and it comes in three different sizes; from small, medium to large. The device is suitable for sporting activities were wearing a hand band is prohibited or difficult to wear, and it does an excellent job in keeping the heart rate in check. The software is updateable for increased functionality, a camera and a replaceable battery. The device is compatible with iOS, androids, GoPro and Bluetooth 4.0 smart devices.
Long battery life
Multiple color choices
Long term reliability may be an issue