Comment by embedding-shape

That only gives you the activities though, doesn't it? Not the 24/7 metrics the device is also collecting outside of started/stopped activities.

I've been trying to get developer access to my watch, but seems for months the Garmin Developer Program doesn't seem to accept any "requests". The only thing I've seen working, is the full account export, but that takes ~3 days for me from pressing the button until I get the email. Besides that, syncing via Bluetooth and reverse-engineer their own protocol that runs there, seems to be the only way, sadly.