How to Update Your Fitbit

Whether you need a Charge 2 or Fitbit Blaze update

Runners setting their wearables ready before a race

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The Fitbit is a great fitness tracker, but sometimes it needs an update to fix bugs or to provide new feature enhancements. 

Here's how to update your Fitbit to the latest firmware

Instructions in this article apply to the following Fitbit devices (while updates are available for the tracker):

  • Fitbit Ace
  • Fitbit Alta
  • Fitbit Alta HR
  • Fitbit Blaze
  • Fitbit Charge 
  • Fitbit Charge 2
  • Fitbit Charge 3
  • Fitbit Charge HR
  • Fitbit Flex 2
  • Fitbit Force
  • Fitbit Ionic
  • Fitbit One
  • Fitbit Surge
  • Fitbit Versa
  • Fitbit Zip

Why Your Fitbit Needs a Firmware Update

Like any technology, Fitbit trackers require occasional bug fixes and updates in order to work at their most effective. Sometimes, these add extra features or enhancements like the introduction of female health tracking but often, they're behind the scenes updates that simply make your Fitbit work more reliably. 

You need to update your Fitbit to be able to sync it to the Fitbit app or dashboard. Luckily, the process often only takes a few minutes. 

Make sure your Fitbit device has at least 50% battery life before updating it. Many updates only take a few minutes, but we recommend you do it when you've got some time to spare. Some updates can take up to an hour.

How to Update Your Fitbit via the Fitbit App 

  1. Launch Fitbit from your phone's home screen. 

    The main Fitbit App Dashboard
  2. Tap the pink update banner displayed on screen.

    You'll only see this banner if an update is available.

  3. Follow the on-screen instructions and keep the device close to your synced phone or tablet.

    If you update at midnight, you may see incorrect steps for the following 24 hours. Try to avoid this time of day for updates.

  4. You're done!

How to Update Fitbit via the Dashboard

Updating your Fitbit via the dashboard is a little trickier than using the app.

You need to have a Bluetooth connection with your PC or Mac, either via built-in Bluetooth or a Bluetooth dongle. You also need to have Fitbit Connect installed. 

  1. Select the Fitbit Connect icon, located near the date and time on your PC.

    On a Mac, this is located in the top right hand corner alongside other dashboard icons and the time and date.

  2. Select Open Main Menu.

    Fitbit Connect Main Menu
  3. Select Check for device update.

  4. Log into your Fitbit account, if prompted.

  5. If an update is found, the Fitbit will update automatically. Otherwise, you'll see a screen telling you your Fitbit tracker is already up to date.

What to Do If Your Fitbit Update Failed

Fitbit won't update? Here are some steps on what to do.

If you can't see an update banner in the app, don't worry. That means your Fitbit tracker is up to date and you don't need to do anything.

  • Make sure the battery life on your device is at 50% or more.
  • Ensure your internet connection is reliable. The update will fail if your connection drops out suddenly.
  • Try turning your tracker off and on again. 
  • Try the firmware update again. Sometimes, a second attempt will work successfully. 
  • If you've already tried via the app, try updating via Fitbit Connect or vice versa.