Fitbit and Apple Health can share your activity data, but the connection works one way

Fitbit sends your step count, distance, calories burned, and active minutes to Apple Health, but Apple Health does not send data back to Fitbit. You set up the link through the Fitbit app on your iPhone, and once it is connected, the data syncs automatically whenever your phone and Fitbit are in range. The process takes about five minutes and requires you to sign in to your Apple Health account during setup.

This matters because you might want your Fitbit data visible in Apple Health if you use other health apps that read from Apple Health, or if you prefer to see all your activity in one place. But if you rely on Fitbit's own app for workouts, sleep tracking, or heart rate data, linking to Apple Health does not change how Fitbit works — it just copies some of that information over.

Key Takeaways

  • Open the Fitbit app, go to your profile, select the device you want to link, and tap the Apple Health toggle to turn it on.
  • You will be asked to sign in with your Apple ID and to allow Fitbit permission to read and write health data in Apple Health.
  • Data syncs automatically, but you can manually refresh by opening the Fitbit app and letting it sync with your phone.
  • Only certain data types move to Apple Health: steps, distance, active minutes, calories burned, and heart rate — not sleep or workout details.
  • You can turn off the connection at any time by toggling it off in the Fitbit app, and the data already in Apple Health will stay there.

Step-by-step setup on iPhone

Start in the Fitbit app. Tap the profile icon in the bottom right corner, then tap your device name (Fitbit Charge, Fitbit Sense, or whatever model you own). Scroll down until you see "Apple Health" and tap the toggle next to it to turn it on.

Your phone will switch to the Settings app and ask you to sign in with your Apple ID. Enter your credentials and tap "Sign In". You will then see a screen asking which health data Fitbit can access. Tap "Allow" or "Turn On" — the exact wording depends on your iOS version, but the button is always at the bottom of the screen. Go back to the Fitbit app. The toggle should now show as on, and you will see a message saying the connection is active.

If the toggle turns back off on its own, or if you see an error message, check that you are signed into iCloud on your iPhone. Go to Settings, tap your name at the top, and make sure you see your Apple ID email. If you are not signed in, sign in there first, then try the Fitbit setup again.

What data actually moves to Apple Health

Fitbit sends five types of data to Apple Health: steps, distance walked or run, active minutes, calories burned, and heart rate. These appear in the Health app under their own categories, and any other app on your phone that reads from Apple Health can see them.

Data that does not sync includes sleep tracking, workout details (like which exercise you did or how long you worked out), weight, or any custom metrics you track in Fitbit. If you want those in Apple Health, you have to log them manually or use a different app that syncs that specific data type. Fitbit's own app will always have the complete picture — linking to Apple Health just copies a subset over.

How often the data syncs

Once the connection is on, Fitbit automatically sends data to Apple Health whenever your phone and Fitbit are in range and your phone has internet. This usually happens multiple times a day, but there is no set schedule. If you want to force an immediate sync, open the Fitbit app, let it load fully, and wait a few seconds — it will sync in the background.

Apple Health itself updates whenever Fitbit sends new data, so you should see your step count and other metrics refresh within a few minutes of the Fitbit app syncing. If you open the Health app and the numbers look old, open Fitbit, wait for it to sync, then go back to Health and pull down to refresh.

Turning off the connection or troubleshooting

To stop syncing, open the Fitbit app, go to your profile, tap your device, and toggle Apple Health off. The data already in Apple Health stays there — turning off the connection does not delete anything. You can turn it back on later without losing history.

If the connection keeps dropping or data is not syncing, first check that you are still signed into iCloud on your iPhone (Settings > [Your Name] > iCloud). Then open the Fitbit app and make sure you are signed into your Fitbit account. If both are correct, try toggling Apple Health off and back on in the Fitbit app. If that does not work, restart your phone and try again.

If you see a message saying Fitbit cannot access Apple Health, go to Settings > Privacy > Health and make sure Fitbit is listed and has permission to read and write data. If Fitbit is not listed, toggle Apple Health off in the Fitbit app and turn it back on — this usually adds Fitbit to the Health privacy list.

Using your Fitbit data in other health apps

Once your Fitbit data is in Apple Health, other apps can read it. Apps like MyFitnessPal, Strava, and many others pull step count and calorie data from Apple Health if you give them permission. This is useful if you want to see your Fitbit activity in a workout app or nutrition tracker without manually entering numbers.

When you first open one of these apps, it will ask permission to read from Apple Health. You can choose which data types to share — for example, you might let MyFitnessPal see calories and steps but not heart rate. You control these permissions in Settings > Privacy > Health, where you can see which apps have access to which data types and revoke access anytime.

Frequently Asked Questions

Can I sync Fitbit to Apple Health on Android?

No. Apple Health only works on iPhone and iPad. Android users can sync Fitbit to Google Fit instead, which works similarly — Fitbit sends steps, distance, and calories to Google Fit, and other Android apps can read that data. The setup is in the same place: Fitbit app > profile > device > Google Fit toggle.

Will syncing to Apple Health drain my Fitbit battery?

No. The sync happens through your phone, not directly between Fitbit and Apple's servers. Your Fitbit battery life should not change noticeably. The Fitbit itself uses slightly more power to communicate with your phone, but this is already happening whether or not Apple Health is connected.

What if I delete data from Apple Health — does it delete from Fitbit too?

No. Deleting data from Apple Health does not affect Fitbit. The connection only goes one way: Fitbit sends data to Apple Health, but Apple Health cannot change or delete anything in Fitbit. Your Fitbit app and device will still have all your history.

Can I sync multiple Fitbits to the same Apple Health account?

Yes. If you have more than one Fitbit device, you can link each one separately in the Fitbit app. Each device will send its data to Apple Health, and the data will combine — for example, if you wear two Fitbits on different days, your step count in Apple Health will be the total from both devices.

Does Fitbit sync to Apple Health automatically after I set it up?

Yes. Once you turn on the Apple Health toggle in Fitbit and grant permission, syncing happens automatically whenever your phone and Fitbit are in range and your phone has internet. You do not have to do anything else — just make sure the toggle stays on.