Whats the process to do this ? ive seen several threads for the H10 but not the H7
I have a Polar H7, you have to go to settings --> sensors --> add new --> heart rate.
After adding the sensor, you can see its ID. If you want to use it during an activity, ex bike, open bike app and wait until a pop-up notification of device synced.
Keep in mind that the Polar H7 only support Bluetooth so only one device can see the heart rate monitor at the same time, while the Polar H10 has both ANT+ and Bluetooth (so limitless devices can be connected at the same time),