Fitbit and Apple Health can share data, but the connection works differently than syncing two Apple devices

Fitbit does not sync directly with Apple Health the way an Apple Watch does. Instead, Fitbit sends your data to the Fitbit app on your phone, and then a separate tool called Health Sync (made by a third party, not by Fitbit or Apple) pulls that data into Apple Health. You can also use Apple's built-in Shortcuts app to move specific data types over, though this method is more limited and requires manual setup.

The reason for this indirect path: Fitbit is owned by Google, and Google has not built a direct bridge to Apple Health. If you want your Fitbit steps, heart rate, sleep, and workouts to appear in Apple Health, you will need to choose one of these two routes and set it up yourself.

Key Takeaways

  • Fitbit data reaches Apple Health through a third-party app called Health Sync, not through a direct connection from Fitbit.
  • Health Sync costs a one-time fee (typically a few dollars) and requires you to sign in with your Fitbit account credentials.
  • Apple's Shortcuts app can also move Fitbit data to Apple Health, but only for specific data types and requires more manual work.
  • Once data is in Apple Health, it stays there even if you stop using Fitbit, so you will not lose your history.

Setting up Health Sync to move Fitbit data to Apple Health

Health Sync is the most straightforward option if you want automatic, ongoing syncing. Download it from the App Store, open it, and sign in with your Fitbit username and password. The app will ask which data types you want to send to Apple Health — typically steps, distance, calories, heart rate, sleep, and workouts. You can choose all of them or pick only what matters to you.

After you grant Health Sync permission to access both your Fitbit account and Apple Health, the app syncs your data automatically in the background. You do not need to open it every day. The sync usually happens within a few hours of when Fitbit records the data. Health Sync is not free — expect to pay between $2 and $5 depending on when you purchase — but it is a one-time cost, not a subscription.

One important note: Health Sync is made by a developer named Jernej Fijačko, not by Fitbit or Apple. This means it relies on Fitbit's public data access system, which Fitbit can change or restrict at any time. So far this has been stable for years, but it is not an official integration.

Using Apple Shortcuts to send Fitbit data to Apple Health

If you want to avoid paying for Health Sync, you can use Apple's Shortcuts app (built into iOS) to pull data from Fitbit and push it into Apple Health. This method is free but requires more setup and only works for a few data types — mainly steps and workouts.

Open the Shortcuts app, create a new shortcut, and add actions that fetch data from the Fitbit API (Fitbit's technical interface for apps). You will need your Fitbit API credentials, which you can get by registering an app on Fitbit's developer website. Then add actions to write that data into Apple Health. This approach works, but it is not intuitive if you have never used Shortcuts before, and you may need to run the shortcut manually or set it to run on a schedule.

For most people, Health Sync is simpler. Shortcuts is worth exploring only if you are already comfortable with automation or if you want to customize exactly which data types move over.

What data actually transfers and what does not

Fitbit tracks many things, but not all of them move to Apple Health. Steps, distance, calories burned, active minutes, heart rate, and sleep data all transfer cleanly through Health Sync. Workouts (runs, walks, bike rides, and other exercises you log) also come over and appear in Apple Health's Workout tab.

Some Fitbit-specific metrics do not have a home in Apple Health. Fitbit's stress score, skin temperature, blood oxygen readings, and menstrual cycle tracking do not transfer because Apple Health does not have fields for them. If these metrics matter to you, you will still need to check the Fitbit app to see them.

Syncing in the other direction: Apple Health to Fitbit

Health Sync and Shortcuts only move data from Fitbit into Apple Health, not the other way around. If you log a workout in Apple Health or use another app that writes to Apple Health, that data will not automatically appear in Fitbit.

This is a real limitation if you use multiple fitness apps. Your Fitbit data will show up in Apple Health, but workouts you log elsewhere will not feed back into Fitbit. You can manually log workouts in the Fitbit app if you want them to count toward your Fitbit stats, but there is no automatic two-way sync.

Troubleshooting common syncing problems

If Health Sync stops syncing, the most common cause is that your Fitbit password has changed. Health Sync stores your login credentials and uses them to fetch data, so a password change breaks the connection. Open Health Sync, go to settings, and re-enter your Fitbit password.

Another frequent issue: you have not granted Health Sync permission to access Apple Health. Go to Settings > Health > Data Access & Devices on your iPhone, find Health Sync in the list, and make sure it has permission to read and write data. If Health Sync is not listed, open the app and try signing in again.

If data is syncing but appearing with a delay, that is usually normal — Fitbit can take a few hours to process and store data, and Health Sync then pulls it over. If the delay is more than 12 hours, check that your phone has an active internet connection and that the Health Sync app has not been force-closed by iOS.

Deciding between Fitbit and Apple Watch if Apple Health matters to you

If seamless Apple Health integration is important, an Apple Watch is simpler. It syncs directly to Apple Health without any third-party app, and all your data appears instantly. The trade-off is cost — Apple Watches are more expensive than most Fitbits — and you need an iPhone to use one.

Fitbit remains a good choice if you prefer its design, battery life (Fitbits typically last 5 to 7 days per charge, while Apple Watches last about 18 hours), or price. The extra step of using Health Sync is minor once it is set up, and your data will still reach Apple Health reliably.

Frequently Asked Questions

Will my old Fitbit data show up in Apple Health if I set up Health Sync today?

Health Sync can pull historical data, but how far back depends on your Fitbit model and Fitbit's servers. Most Fitbits store several months of data that Health Sync can retrieve. When you first sign in, Health Sync typically syncs the last 30 days automatically, but you can often request older data through the app's settings.

Do I need to keep the Fitbit app open for Health Sync to work?

No. Health Sync connects directly to Fitbit's servers using your login credentials, so the Fitbit app does not need to be running. You can close it entirely if you want. Health Sync will continue syncing in the background as long as your phone has internet and the Health Sync app has not been force-closed by iOS.

What happens to my Apple Health data if I stop using Fitbit?

Your data stays in Apple Health permanently. Once Fitbit data is written to Apple Health, it is stored locally on your phone and in iCloud (if you have iCloud Health sync turned on). Deleting the Fitbit or Health Sync app will not erase what is already in Apple Health.

Can I use Health Sync with a Fitbit I share with someone else?

Health Sync syncs data from one Fitbit account to one Apple Health account. If two people share a Fitbit device, only one person's Apple Health will receive the data. Each person would need their own Fitbit account and their own copy of Health Sync to sync to their own Apple Health.

Does Health Sync work with all Fitbit models?

Health Sync works with most current Fitbit models, including Charge, Inspire, Sense, and Versa lines. Very old Fitbits (more than 5 years old) may not work if Fitbit has deprecated their data access. Check the Health Sync app listing or contact the developer if you have an older model.