How do Fitbit devices sync their data?

Sync your device with the Fitbit app on your iPhone or Android phone. To verify that your phone is compatible with the Fitbit app, visit fitbit.com/devices.

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What is syncing?

Syncing is the process that transfers the data your device collects to your Fitbit account. Track your progress, see how you slept, set goals, log food and water, and more in the Fitbit app.

Fitbit trackers, watches, and Fitbit Aria Air use Bluetooth Low Energy (BLE) technology to sync with phones and tablets. Fitbit Aria and Fitbit Aria 2 use Wi-Fi to connect directly to your router.

To make sure your device can sync with the Fitbit app, visit fitbit.com/devices.

How do I sync my device with the Fitbit app?

Fitbit devices

Data automatically syncs to the Fitbit app throughout the day. Each time you open the Fitbit app, your device syncs automatically when it's nearby.

For more information on how to sync Fitbit Ace devices, see How do I set up Fitbit Ace devices?

Google Pixel Watch series

Data automatically syncs to the Fitbit app on your phone throughout the day and after you complete an exercise.
How do I manually sync my tracker or watch?

Fitbit devices

  1. With your device nearby, open the Fitbit app and tap the Today tab .
  2. Tap and hold on the screen and pull down.

Or use the Sync Now option:

  1. From the Today tab , tap Devices  device image.
  2. Tap Sync Now.

Google Pixel Watch series

  1. With your watch nearby, open the Fitbit app and tap the Today tab .
  2. Press and hold on the screen and pull down.

Or use the Sync Now option on your watch:

  1. Press the crown, swipe up to the Today app , and tap the app to open it.
  2. Swipe to the bottom, and tap Sync.
When does my Fitbit scale sync?

Fitbit Aria or Fitbit Aria 2 automatically syncs your stats to the Fitbit app after every weigh-in.

Illustration of the scale's screen with a progress bar at the top and, below that, circular arrows in a counter-clockwise direction

A checkmark appears after data is synced. See your stats in the Fitbit app.

Where can I see when my Fitbit device last synced?
Find information about your Fitbit device, such as firmware version, battery level, and when your device last synced.

Fitbit app

Tap the Today tab , and then tap Devices .

Fitbit.com dashboard

On the fitbit.com dashboard, click the gear icon . The last time you synced is listed below the name of your Fitbit device.
Why can't I sync my Fitbit device?
If your device stopped syncing, the likely problem is a connection issue. For troubleshooting tips, see Why won't my Fitbit device sync?
Can I sync my tracker or watch with more than one device?
Sync your device with any compatible phone or tablet. If you receive notifications on your Fitbit device, forget the Fitbit device under the Bluetooth settings on your phone before you use a different phone. For instructions see Why won't my Fitbit device sync?
Can I sync more than one Fitbit device to the same account?
Multiple Fitbit devices can sync to the same account for a complete view of your activity. For more information, see How do I set up my Fitbit device?

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