Turn on the Bluetooth and location service on your phone.
2. Find the Sensor Settings Menu in the Sports & Fitness app. Take CoospoRide and Heartool app as examples.
Go to CoospoRide app > More > Sensors > Heart Rate
Or go to Heartool app > Settings > Device > Add Device
3. Find the HW9 Bluetooth ID and select it in the app to connect.
Note: Do not pair the sensor in the Bluetooth settings of your phone.