A:Answer Hi JWMAP,
You can use multiple watches/devices with the same Garmin Connect account. You will be able to see all of the activities from each of the devices within the account. Depending on the second device, you will also be able to sync step data, thru the app, and see accumulated steps on both devices. The current list of fully compatible devices are as follows:
vivosmart HR/HR+ ,vivoactive HR, fenix 3, fenix 3 HR, fenix Chronos, Forerunner 35, Forerunner 230/235, Forerunner 630, Forerunner 735XT, vivofit 3, Approach S20, Approach X40, D2 Bravo
Tactix Bravo, Quatix 3,
Ben