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When do I need the wireless sync dongle?

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The wireless sync dongle is the small USB device that comes with some Fitbit devices. The dongle allows your device and computer to communicate with one another.

When do I need to use the dongle?

If you only sync your Fitbit device with a phone, you don't need the dongle. Some computers that can communicate with the device 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 devices come with a dongle?

Because our newer devices are optimized for use with phones, they don't ship with dongles. The devices you can purchase that come with a dongle include:

  • Flex
  • Surge
  • One
  • Zip

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. 

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Last updated: October 16, 2017
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