If your Fitbit or Google Pixel Watch won’t sync, first check Google’s service status, then open the Google Health app (formerly Fitbit), confirm you’re signed into the right Google Account, and try a manual sync. If that fails, check Bluetooth, internet access, app permissions, and the device’s connection before restarting or re-pairing it. Don’t factory-reset first: unsynced activity stored on the device can be erased.
Google Health is the current app for Fitbit data. Fitbit-account sign-in ended after May 19, 2026; use the Google Account associated with your migrated data. Work through the low-risk checks below before removing a device or resetting it.
First, identify what is not syncing
Syncing has two links: the wearable transfers data to the phone over Bluetooth, then Google Health uploads it to your account over Wi-Fi or cellular data. A Bluetooth connection does not prove that cloud upload is working. Common signs include stale steps or sleep, a sync error, the wearable missing from Google Health, an incorrect time, or syncing that works only while the app is open.
Try these checks first
- Check for an outage. Visit the Google Health Status Dashboard. If it reports an incident affecting sync, the app, or the Web API, leave the device recording and try again after service returns. Reinstalling the app or resetting the wearable will not fix a server outage.
- Confirm the app and account. Find or update Google Health in Google Play or the App Store. Sign in with the Google Account that contains your migrated Fitbit data; a different account can make history appear missing. Google Health currently requires Android 11 or later or iOS 16.4 or later.
- Run a manual sync. Put the device near the phone. In Google Health’s Today tab, press and hold the screen, pull down, and release when the progress bar appears. Or go to Connections → Sync. To check the last sync, open Connections, select the device, and check the time shown beneath its image. These steps are documented in Google’s sync instructions.
- Check both connections. Turn off Airplane Mode, confirm Bluetooth is on, and make sure the phone has Wi-Fi or cellular internet. The wearable uses Bluetooth to reach the phone; the phone needs internet to upload the data.
- Restart the wearable and phone. Use the model-specific restart instructions below. A restart normally turns the device off and on without deleting activity data.
- Update the app and device software. Install available Google Health, phone OS, and wearable firmware updates. Charge the device first; firmware updates may take more than an hour, so keep Google Health running and the device near the phone. Google recommends at least 50% charge, preferably 75% or more, for an update.
Use the result as a clue: if manual sync works but background sync does not, investigate background permissions and power or data restrictions. If it fails immediately, check pairing, permissions, account, and service status. If the progress bar completes but the information remains stale, confirm the account and check for an outage before resetting anything.
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Fix background syncing on Android
Menu names vary by phone manufacturer. On Android 12 and later, Google Health needs Nearby devices permission; Location may also be needed for device discovery, particularly on older Android versions.
- Open Settings → Apps → Google Health → Permissions. Allow Nearby devices and Location where available.
- If syncing only works with the app open, check Settings → Network & internet → Data Saver. If Data Saver is on, allow Google Health under Unrestricted mobile data.
- Check the phone’s battery controls and allow Google Health to run in the background. On Samsung phones, remove it from Sleeping apps or Deep sleeping apps if listed; other phones may call this Battery optimization, Background activity, or Auto-start.
- To clear a possibly corrupted cache, open Settings → Apps → Google Health → Storage & cache → Clear cache. Avoid Clear storage/data unless you are prepared to sign in and set the app up again.
Background restrictions can delay automatic syncing and other connected-device functions. See Google’s guidance on background restrictions and sync troubleshooting.
Fix syncing on iPhone
- In Settings → Bluetooth, make sure Bluetooth is on. In Settings → Apps → Google Health, allow Bluetooth and Mobile Data.
- In iPhone settings, enable Background App Refresh for Google Health. Turn off Low Power Mode while testing, and confirm the phone has Wi-Fi or cellular internet.
- Make sure the wearable is not connected to another nearby phone or tablet. If you recently changed phones, turn off Bluetooth on the old phone while troubleshooting.
- Try a manual sync from Google Health. If it still fails, follow the re-pairing steps below rather than pairing from Bluetooth settings alone.
Google’s iPhone sync guidance includes checking Bluetooth, Background App Refresh, and mobile-data access.
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Pixel Watch sync troubleshooting
Pixel Watch uses both the Google Pixel Watch app and Google Health. In the Pixel Watch app, confirm the home screen says Connected; in Google Health, check Connections to confirm the watch appears there too. Pixel Watch does not pair with iPhone.
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- Confirm the phone has internet access and the watch is connected through Bluetooth, Wi-Fi, or LTE. Update Google Health on the phone and watch, and install any pending watch system update.
- To update watch apps, press the crown, open Play Store, swipe up, then tap Manage apps → Update all. For the operating system, open Watch Settings → System → System updates.
- Turn off Battery Saver and Bedtime mode while troubleshooting. Google notes that these modes can prevent background data synchronization; interacting with the watch or disabling the modes can restore it. See Google’s Pixel Watch sync guidance.
- For a normal restart, hold the crown for about three seconds and tap Restart. If the watch is unresponsive, Google documents a hard restart by holding the crown and side button for about 35 seconds until the Google logo appears. Do not use a hard restart as the first step for an ordinary sync problem.
Restart instructions by device
Use the instructions for your model; button combinations differ. A restart is not a factory reset and normally preserves activity data. Google’s restart guidance explains the distinction.
| Device | Normal restart | If unresponsive |
|---|---|---|
| Charge 5 or Charge 6 | Swipe down from the clock; open Settings → Restart Device → Restart. | Connect the charger and press its button three times, with one-second pauses. Wait about 10 seconds for the Fitbit logo. |
| Charge 3 or Charge 4 | Open Settings → About → Reboot Device. | Use the restart procedure for the model and its charging cable. |
| Versa Lite, Versa 2, Versa 3, or Versa 4 | Hold the physical button for about 10 seconds, until the Fitbit logo appears. | Keep holding until the logo appears; do not insert anything into sensor holes. |
| Original Versa | Hold the left button and bottom-right button for about 10 seconds. | Use the same button combination until the Fitbit logo appears. |
| Sense or Sense 2 | Hold the physical side button for about 10 seconds, until the Fitbit logo appears. | If charging is also a problem, keep the watch connected to its charger while troubleshooting. |
| Google Pixel Watch | Hold the crown for about three seconds, then tap Restart. | Hold the crown and side button for about 35 seconds, until the Google logo appears. |
Check for a second phone, then re-pair if needed
A device left connected to an old phone, tablet, or another nearby device may not connect reliably to the current phone. Turn off Bluetooth on other nearby devices that have been used with the wearable, especially after switching phones or restoring a backup.
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If ordinary checks fail, forget and set up the device again through Google Health. Do not start setup from the phone’s Bluetooth screen alone; Google’s Android pairing instructions say to initiate pairing in the app.
- Android: Remove or disconnect the device in Google Health, then open the phone’s Bluetooth settings and forget every entry for it. Turn Bluetooth off and back on, restart the phone, open Google Health, and choose Set up a device. Follow the in-app prompts.
- iPhone: Open Settings → Bluetooth, tap the information button beside the device, then tap Forget This Device. Open Google Health and approve its pairing prompt.
Before doing this, make sure you can sign in to the Google Account associated with your data. Re-pairing is more disruptive than a restart and is not the same as a factory reset.
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A device that is critically low on power may appear to have a sync problem. If it has a black screen, will not stay on, or shows a red X, try a wall outlet rather than a computer USB port, clean the charging contacts and cable pins, and leave it charging for at least an hour. A red X can indicate a sync or software error; Google’s red X guidance includes removing the device, forgetting it in Bluetooth, and setting it up again.
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For a firmware update, charge the wearable and keep it close to the phone with Google Health running. Use a stable Wi-Fi or cellular connection and allow the update time to finish; do not repeatedly restart or unpair it during an update.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Before a factory reset
Reset only after checking service status, account, internet, permissions, updates, restart, and re-pairing. A factory reset can clear persistent device configuration problems, but it erases locally stored activity that has not synced, as well as settings such as alarms, goals, and notifications. Data already uploaded to the correct Google Health account should remain there; recent workouts or sleep that never uploaded may be lost.
Google’s recovery guidance warns that reset removes unsynced local data. If you proceed, first try one last manual sync and confirm you know the Google Account password. For Pixel Watch, reset from Settings → Disconnect & reset or the Pixel Watch app’s System → Reset and unpair watch. For other models, consult the official instructions for that exact model; reset steps vary.
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When to contact support
Contact Google Health support rather than repeating resets if the device still cannot pair after its app and Bluetooth records have been removed, fails on multiple compatible phones, repeatedly freezes or reboots, will not hold a charge, or still fails after a clean reset and setup. Damaged charging contacts, liquid exposure, or other physical damage also point toward a hardware issue. These are troubleshooting clues, not a definitive hardware diagnosis.
FAQ
Is the Fitbit app still called Fitbit?
No. As of August 2026, the current app is Google Health, formerly Fitbit. Update or find Google Health in your app store and sign in with the Google Account associated with your migrated data. Google says Fitbit-account access ended after May 19, 2026; see its account migration information.
Why does my watch say connected when Google Health has no new data?
Bluetooth may have transferred data to the phone while the phone’s internet connection, account session, or Google Health service prevents cloud upload. Check internet and Google’s status dashboard, then verify the Google Account and last-sync time under Connections.
Why does my Fitbit sync only when I open Google Health?
Background activity may be restricted by Android battery controls or Data Saver, or by iPhone Background App Refresh or Low Power Mode. Allow Google Health to run in the background, then test manual and background syncing separately.
Will restarting or resetting my wearable delete my steps?
A normal restart does not normally delete activity data. A factory reset can erase activity that has not yet synced, along with local settings. Try a manual sync before resetting and do not assume recent unsynced activity is safe.
Can I pair a Pixel Watch with an iPhone?
No. Pixel Watch requires an Android phone. The current Google Health app also requires Android 11 or later; check Google’s app requirements and Pixel Watch phone compatibility information.
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