Google acquired Fitbit back in 2021 and has spent the past five years evolving the famous fitness brand into something different. Though Fitbit branded trackers and watches are still sold, the Fitbit app is now the vehicle for the Google Pixel Watch, and there hasn’t been any new Fitbit hardware since 2023.

Despite the upheaval, Google has been quite lenient on one particular detail for longterm Fitbit fanatics. Before the acquisition, users would sign in to the Fitbit app for iPhone and Android by creating and maintaining a Fitbit account.

Now, to make a Fitbit account you can do so by logging in with an active Google account – there is no other way. But Google has let legacy Fitbit account logins continue to work, while encouraging users to migrate their data and account over to link to a Google account.

After a couple of deadline changes, it looks as though time is finally up. This month, Google is finally putting its foot down, with May 19, 2026, the cut off. If you still log in to your Fitbit app with a Fitbit account, you must migrate your data before that date – otherwise you’ll lose access to it.

If you let the deadline slide, you’ll not only lose access to your Fitbit account, but also all your historic Fitbit data – all those years of steps, heart rate and runs will be lost.

“After May 19, 2026, you can no longer access Fitbit with your Fitbit account. To continue using your account, you’ll need to move your Fitbit account to Google,” Google said on a support page.

“Previously, you needed to create a Fitbit account to use the Fitbit app and sync data between your device and account. Now, Google Accounts give you access to all Google services, including Fitbit.

“During the migration process, you have the opportunity to review and make changes to your Fitbit data and setup. After that, you can then manage your Fitbit data from your Google Account settings and the Fitbit app.

“You’ll keep all historical data that you choose to move to your Google Account.”

That means you have until May 18 to move your Fitbit account over. Google says you’ll still be able to download or delete your old Fitbit account data at any time before July 15, 2026, but May 18 is the absolute last day you can successfully migrate.

Given that Fitbit started selling fitness tracker devices way back in 2007, hitting the peak of its powers about a decade later, there are conceivably thousands of people still out there not moved over to a Google account set up. Fitbit fans can be quite brand loyal, so even if they have a much newer Fitbit tracker, their data could well still be linked to a legacy Fitbit account.

If that sounds like you – and you don’t want to suddenly lose years of personal fitness data – you need to take action now. Google lays out how to move your Fitbit account to a Google account in four steps:

1. Open the Fitbit app.
2. Sign in to your Fitbit account.
3. Tap Settings and then Move account.
4. Follow the on-screen instructions.