What Two-Way Fitbit–Apple Health Sync Does for You
Fitbit Apple Health sync is a new two-way health data syncing feature that uses the Google Health integration on iPhone to send workouts, sleep, steps, vitals, and other Fitbit metrics into Apple Health, while still importing HealthKit data back into Google Health for a single, combined view of your activity and wellness records.
If you wear a Fitbit but rely on Apple Health as your main health hub, this update finally makes your devices cooperate instead of compete. Google Health version 5.05 on iOS adds direct Fitbit-to-Apple Health syncing, closing the old one-way limitation where data could only move from Apple’s side into Google’s app. According to Google’s release notes, “users can share exercise records, sleep, vitals, steps, and more from Google Health to Apple Health.” In practice, that means your Fitbit workouts, daily steps, and sleep data sit next to logs from your iPhone, Apple Watch, and other HealthKit-compatible apps, without needing a bridge app or manual exports.
What You Need Before You Sync Fitbit to Apple Health
Before you flip any switches, it helps to know what’s required and what this won’t fix. First, you need an iPhone running the latest Google Health app (version 5.05 or later) installed from the App Store, because that update adds direct Fitbit-to-Apple Health syncing on iPhone. Any Fitbit that works with Google Health can take part, including current trackers and watches, since the app is the bridge that controls the new two-way health data syncing.
You’ll also need Apple Health set up on your iPhone, with your Apple ID signed in and Health permissions ready to adjust. Previously, users had to rely on third-party utilities to sync Fitbit to Apple Health, such as dedicated sync apps and other workarounds. That era is over: Google Health now handles the Google Health integration directly, removing the need for subscription sync services and manual export–import rituals. The one real caveat is that not every single Fitbit metric appears in Apple Health right now, so if you depend on niche stats, you’ll want to double-check what shows up after setup.
Step-by-Step: Turn On Two-Way Fitbit Apple Health Sync
Here’s the exact sequence to follow, like walking a friend through your phone settings. Take it slow the first time, because most problems come from skipping a permission screen or not having the right app version installed.
- Update Google Health on your iPhone: Open the App Store, go to your updates list, and tap Update next to Google Health so you’re on version 5.05 or later.
- Open Google Health and find connections: Launch the app, then either open your profile and select Partner apps, or tap Connections → Apps and services, depending on what your interface shows.
- Add Apple Health as a partner app: In the list of apps and services, choose Apple Health to start the Google Health integration and begin setting up Fitbit Apple Health sync.
- Approve data permissions in Google Health: When prompted, grant permission for Google Health to read and write categories like exercise records, sleep, vitals, steps, and more so Fitbit data can move into Apple Health.
- Confirm sharing options in Apple Health: Open Apple Health, go to the Sharing tab, select Apps, tap Google Health, and choose which data categories Apple Health can exchange with Google Health.
- Restart Google Health if data doesn’t appear: If you don’t see the syncing option or new data right away, close and refresh Google Health, or fully restart it, then wait a bit for information to show.
The two biggest gotchas are missing updates and rushed permissions. If the sync option never appears, your Google Health version is almost always the culprit. And if your steps or sleep aren’t showing in Apple Health, it usually means a category wasn’t allowed when you first approved sharing. PhoneArena’s testing found that “users may need to restart Google Health and wait before all selected information appears,” so don’t panic if it takes a short while.
What Data Transfers, and What Stays Behind
Once everything is connected, your Fitbit workouts, sleep data, steps, and vitals automatically transfer to Apple Health and can be seen by other HealthKit-compatible apps that you approve. The available sources consistently list steps, exercise, sleep, heart rate, distance, and vitals as supported data for this two-way health data syncing. That’s what most people care about day to day, and it means your daily dashboard in Apple Health now reflects what your Fitbit has tracked, not just what your iPhone happens to record.
However, some Fitbit data still doesn’t cross the bridge. Reports point out that heart rate variability (HRV) does not currently sync from Google Health into Apple Health, potentially because the platforms calculate HRV differently. If HRV trends are central to how you manage training load or recovery, you’ll want to confirm whether they appear, and consider a separate app if that data is essential to you. More broadly, users should review each data category inside Apple Health’s Sharing settings before enabling access, since any records that reach Apple Health may then be available to other apps connected through HealthKit.
Is the New Sync Worth Using?
For Fitbit users on iPhone, the main benefit is less fragmentation: workouts and wellness data can now sit in Apple Health without a separate syncing subscription or workaround. You no longer have to choose between wearing your favorite Fitbit or having a tidy health history in Apple’s app. Instead, Google Health and Apple Health compare notes through official channels, and most of the everyday metrics—steps, distance, heart rate, sleep—line up across both.
The setup is a one-time effort, and while the missing HRV data is annoying if you rely on it, it doesn’t affect the core experience for most people. The key is to watch for those two common gotchas: stay on the latest Google Health version and carefully check your permission toggles in both apps. Once you’ve done that, it’s worth keeping the sync on and occasionally spot-checking that the records you care about—especially before you share them with another health app or a provider—are flowing as expected.
