Works with all Fitbit trackers.
The dongle may be refurbished. Our refurbished dongles are tested to ensure they look and work like new.
Computers running Windows 7, 8 or 8.1 operating systems require a dongle in order to sync to your computer.
All other computers or tablets running Windows 10 or Mac 10.6 + must contain built-in Bluetooth 4.0 LE chips to sync without a dongle. If your computer hardware does not have Bluetooth 4.0 LE chips, you will still need a dongle to sync to computers running these operating systems.