How can I connect external devices, such as a heart rate monitor?
Go to Settings (see FAQ How do I access the on-board computer settings?) and activate Bluetooth. An automatic search takes place for heart rate monitors within range. Select the required heart rate monitor to connect to it. You can recognize the active connection to the heart rate monitor by the white heart symbol in the status screen. If you have activated a Bluetooth-enabled heart rate monitor, the heart rate will be displayed on a screen.