I have Polar H10 and Fenix 5S. The connection between then is stabme but let us assume I would want to wear the watch and the H10 for a workout (with watch HR disabled), saving HR data to H10 (it allows to save 1 session).
When I finish the session, how can I integrate the HR data downloaded from H10 into GCM? I have not tried this yet. Or can I pair the watch and H10 right after the workout and later pair the 5S with GCM and it will have integrated the HR data already from H10