If you have multiple smart watch devices that you want to use at the same time, each will need its own separate fitbit account. You don’t need a separate app-just different accounts. You’ll need to log out of one account and into the other on your fitbit app. The info in each account is totally separate and won’t transfer from one account to another.
If you want to use multiple devices on the same account, you have to remove one device then go through the whole setup processes with the second each time you want to swap.
It’s not really set up to be able to easily use different smart devices at different times (like maybe using the ionic for GPS for a workout or swapping to the charge 3 for something more discreet during the day).
But I suppose it’s a first world problem.
In theory, fitbit says you can have a non-smart device on the same account with your smart device. I had a charge 2 that I had on each of 2 of my accounts when I got the smart devices. It just seemed to cause problems and neither ended up syncing. Once I took the charge 2 off, things were better. So idk if that’s my phone (iPhone X) or if the planets just didn’t align for me, but I wasn’t able to have another device on the account at the same time with a smart device.
