@TT-VA Fitbit will store any information that has previously been synced, regardless of whether you change devices. Just sync before you set up the Versa and you won't lose any information. I know you can't have two "smartwatches" on your account at the same time, but you may be able to have a Charge 2 and a Versa at the same time. If you need to remove the Charge 2, though, you can always go back to it by setting it up on your account to replace the Versa, using the add device process each time.
