Link my device to vitality account

Which Garmin device do you use?

Vivosport 

I don't have a vitality account, but if it has a connection to Garmin Connect like other services, then this is the process to follow. Typically it's a matter of disconnecting then reconnecting to get things flowing again.

• Disconnect Garmin from the vitality side on their web site
• Disconnect vitality from the Garmin side using the web interface at https://connect.garmin.com/modern/settings/accountInformation scroll down to the applications section, look for vitality and click "disconnect"
• Log out of Garmin Connect
• Go back to the vitality web site and connect to Garmin Connect

Now that I've said all that, I see that Vitality has their own set of instructions here: https://www.vitality.co.uk/support/activity-trackers/garmin/connect-garmin-to-vitality/