Thanks for the feedback!
What I do is I use Strava with the Apple Watch and iPhone, and those do sync obviously - not sure about how to sync "manifest files" though.
It should just do it automagically without any input. Think it’s called A-GPS. On Polar/Garmin it tells you when the expiration is (usually a month) but they get updated every Sunday.
Thanks for the feedback!
What I do is I use Strava with the Apple Watch and iPhone, and those do sync obviously - not sure about how to sync "manifest files" though.