When do I need the wireless sync dongle?

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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:

  • Alta
  • Blaze
  • Charge 2
  • Flex 2 

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. 

Last updated: October 28, 2016
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