Fitbit can send some data to Apple Health, but not all of it, and the connection works differently depending on which Fitbit model you own
Fitbit syncs with Apple Health on iPhones, but the connection is one-way and incomplete. Fitbit sends your step count, distance, calories burned, heart rate, and sleep data to Apple Health. It does not send workout details, weight tracking, or nutrition logs. The sync happens automatically once you set it up, but you cannot send data from Apple Health back to Fitbit.
The reason for this limitation is that Apple and Fitbit (owned by Google) do not have a formal partnership for two-way data sharing. Apple Health accepts data from Fitbit through a standard health data format, but Fitbit's app does not read data from Apple Health. If you use both apps, you will see your step count in both places, but Apple Health will not influence what Fitbit tracks or recommends.
Key Takeaways
- Fitbit sends step count, distance, calories, heart rate, and sleep to Apple Health automatically after you connect them in the Fitbit app.
- Fitbit does not send workout sessions, weight logs, or food intake to Apple Health, so those stay visible only in the Fitbit app.
- The connection is one-way: Apple Health receives data from Fitbit, but Fitbit cannot read data from Apple Health or other sources.
- You set up the sync once in the Fitbit app under "Connected Services" and do not need to do anything else unless you disconnect.
How to connect Fitbit to Apple Health on iPhone
Open the Fitbit app on your iPhone and tap the profile icon in the bottom right. Scroll down and tap "Connected Services." Look for "Apple Health" in the list. Tap it, then tap "Connect." You will see a screen asking permission to let Fitbit write health data to Apple Health. Tap "Allow" or "Turn On" (the exact wording depends on your iOS version). The connection is now active.
Once connected, Fitbit begins sending data to Apple Health within a few minutes. You can verify this by opening the Apple Health app, tapping the "Browse" tab at the bottom, and looking for categories like "Steps," "Heart Rate," or "Sleep." If you see Fitbit listed as the source, the sync is working. If you do not see Fitbit data appearing after 15 minutes, close both apps completely and reopen them.
What data Fitbit actually sends to Apple Health
Fitbit sends these metrics to Apple Health: steps, distance traveled, active minutes, calories burned, heart rate (if your Fitbit has a heart rate sensor), resting heart rate, and sleep duration. These are the core metrics that most people track, and they appear in Apple Health within minutes of being recorded on your Fitbit.
Fitbit does not send workouts you log manually in the Fitbit app, weight entries, food and water intake, or menstrual cycle data. If you want those details in Apple Health, you have to enter them directly into the Apple Health app. This is a significant gap if you use Fitbit's nutrition tracking or weight loss features — Apple Health will not see that information.
Why the sync is one-way and what that means for you
Apple Health is designed to be a hub where data from many sources flows in. Fitbit's app is designed to be self-contained — it collects data and keeps it within Fitbit's ecosystem. Because Google (Fitbit's owner) and Apple do not have a formal data-sharing agreement, Fitbit only sends data out; it does not pull data in from Apple Health.
This matters if you use other health apps or devices alongside Fitbit. For example, if you track a workout in Apple Health using a different app, Fitbit will not see it. Your Apple Health dashboard will show data from multiple sources, but your Fitbit app will only show Fitbit data. You end up with two separate pictures of your health rather than one unified view.
What to do if the sync stops working
If Fitbit data suddenly stops appearing in Apple Health, first check that your Fitbit is still syncing with your phone. Open the Fitbit app and look at the dashboard — if it shows recent data, your Fitbit is working. Then check that the Apple Health connection is still active by going to Profile > Connected Services > Apple Health. If it says "Disconnected," tap it and reconnect.
If the connection is still active but data is not flowing, try disconnecting and reconnecting. Go to Profile > Connected Services > Apple Health and tap "Disconnect." Wait 30 seconds, then tap "Apple Health" again and reconnect. Close both apps completely (swipe them away from the app switcher, do not just press home), then reopen them. This usually restores the sync within a few minutes.
If you have recently updated iOS or the Fitbit app, the connection sometimes breaks temporarily. Check that both apps are fully updated in the App Store. If you have changed your Apple ID or iCloud settings, you may need to disconnect and reconnect to re-authenticate.
Fitbit models and Apple Health compatibility
Most current Fitbit models sync with Apple Health: Fitbit Charge 6, Fitbit Inspire 3, Fitbit Sense 2, Fitbit Versa 4, and Fitbit Ace LTE. Older models like the Charge 5, Sense, and Versa 3 also sync. The Fitbit app itself determines compatibility, not the device — as long as your Fitbit model is still supported by the current Fitbit app, it can connect to Apple Health.
If you own an older Fitbit that is no longer supported by the current app, you cannot set up the Apple Health connection. Fitbit typically supports devices for 5 to 7 years after release, but this varies. Check the Fitbit website or your device's product page to confirm your model is still supported.
Alternatives if you want tighter integration
If you need data flowing both ways between your fitness tracker and Apple Health, consider using an Apple Watch instead. The Apple Watch syncs all its data to Apple Health automatically and reads data from Apple Health to inform its recommendations. The trade-off is that you are locked into Apple's ecosystem and cannot use a Fitbit alongside it.
Another option is to use a third-party app like Health Sync or Sync Solver, which can move data between Fitbit and Apple Health in both directions. These apps cost money (usually $5 to $15) and require you to grant them access to both Fitbit and Apple Health. They work by pulling data from Fitbit's servers and pushing it into Apple Health on a schedule you set. This is more complicated than the built-in sync, but it captures data Fitbit does not send on its own, like workouts and weight logs.
Frequently Asked Questions
Can I see my Fitbit data in the Apple Health app?
Yes, once you connect them. Open Apple Health, tap "Browse," and look for categories like Steps, Heart Rate, or Sleep. Tap any category to see Fitbit listed as the source and view your history. The data updates automatically whenever your Fitbit syncs.
Will Apple Health data show up in my Fitbit app?
No. Fitbit only sends data to Apple Health; it does not read from Apple Health. If you log a workout or weight entry in Apple Health, it will not appear in Fitbit. You have to enter that information in the Fitbit app if you want Fitbit to track it.
Do I need to do anything to keep the sync going?
No. Once you connect Fitbit to Apple Health, the sync runs automatically in the background. You do not need to open either app or do anything manually. Data syncs whenever your Fitbit connects to your phone.
What if I disconnect Fitbit from Apple Health?
If you disconnect, Fitbit stops sending new data to Apple Health. The data already in Apple Health stays there — it does not delete. If you reconnect later, new data will flow in again, but there will be a gap in your history for the time you were disconnected.
Can I use Fitbit with other health apps and Apple Health at the same time?
Yes. Fitbit can connect to Apple Health and other apps like Strava or MyFitnessPal simultaneously. Each app receives the data Fitbit sends to it. Your Apple Health will show Fitbit data, but other apps will not see data from Apple Health unless they also connect to it separately.