Polar H9 is a high quality heart rate sensor for your everyday sports. It comes with the Polar Soft Strap and tracks your heart rate accurately. Polar H9 is ideal with the Polar Beat app as well as many 3rd party apps: you can turn your phone into a fitness tracker easily. Further, Bluetooth, ANT+ and 5 kHz technologies ensure connections to a large variety of sports devices and gym equipment. Thanks to chest strap measurement Polar H9 reacts instantaneously to what happens in your body and gives you accurate calorie burn.
M-XXL: 65-107 cm