Why doesn't my heart rate sensor connect?

There are several reasons why your heart rate sensor does not connect to the app. One is that the sensor has already connected to another device. Another is that the batteries of your sensor need to be replaced. It is also important to connect the sensor only within the training and not to do this already in the settings of your device. In addition, Exercast may not support your heart rate sensor. In this case you should contact our support. We will process your request as soon as possible and try to enable you the use of your sensor within the app.