An Apple Watch that is already paired to your iPhone normally syncs automatically. There is no general “Sync Now” button you need to press for everyday data such as settings, activity, and supported app information.
Get an Apple Watch syncing again
- Keep the iPhone and Apple Watch close together.
- Make sure Bluetooth and Wi-Fi are enabled and Airplane Mode is not blocking the connection.
- Open the Watch app on the iPhone and confirm the correct watch is listed.
- Restart both devices if recent changes are not appearing.
- Install compatible software updates when available.
- If the watch remains disconnected, use Apple’s pairing or unpairing workflow rather than repeatedly toggling random settings.
Some information syncs through iCloud or through the individual app, so a delay does not always mean the watch connection is broken. For example, music, photos, health information, and third-party apps can each have their own synchronization rules.