Can I sync more than one Fitbit device to the same account? If you have multiple devices, they can all sync to the same account to make sure you see a complete view of your activity.
Can a Fitbit be synced to 2 phones?
If you have more than one phone, such as one for work and one for personal use, it's not possible for one Fitbit device to receive notifications from both phones. Setting up notifications creates a bond between your Fitbit device and the phone, and a Fitbit device can only be bonded to one phone.
Why won't my Fitbit device sync to another phone or computer?
Troubleshooting steps
Force quit and then reopen the Fitbit app. Bluetooth and turn Bluetooth off and back on. ... If your Fitbit scale still doesn't sync, remove all other Fitbit devices from your account and from the list of connected Bluetooth devices on your phone and try to sync.