The wireless sync dongle is the small USB device that comes with most Fitbit trackers. The dongle allows your tracker and computer to communicate with one another.
When do I need to use the dongle?
If you only sync your tracker with a mobile device, you don't need the dongle. Some computers that can communicate with the tracker over Bluetooth also don't need the dongle. However, because a computer's Bluetooth signal can occasionally be weak or problematic, it's a good idea to keep the dongle nearby even if you usually sync without it.
The Bluetooth-equipped computers that don't generally require a dongle are:
- Macs with Fitbit Connect software installed
- Windows 10 PCs with the Fitbit app for Windows 10 installed
Which trackers don't come with a dongle?
Because our newer trackers are optimized for use with mobile devices, they don't ship with dongles. This list includes:
If you need a dongle, they're available for sale in the Fitbit Store.
Note that Blaze customers who want to use a computer don't need a dongle if these conditions are met:
- The computer is running Windows 10.
- The Fitbit app for Windows 10 is installed.
- Blaze is in the charging cradle.
- The other end of the cradle is plugged into a USB port on the computer.
In this scenario syncing occurs while Blaze is in the charging cable. It only works in conjunction with the Fitbit app for Windows 10.