How to Pair an Existing Apple Watch with a New iPhone

Pair an existing Apple Watch with a new iPhone by backing up the old iPhone, updating both devices, and using the Apple Watch app on the new iPhone to restore the watch from a backup. Keep the Apple ID password, watch passcode, and both devices nearby during the Apple Watch pairing after an iPhone upgrade.

Steps

Back up the old iPhone. Create an iCloud or computer backup while the Apple Watch remains connected. Encrypted computer backups preserve more Health and Activity data.
Update both devices. Install the latest compatible iOS version on the new iPhone and the latest watchOS version available for the Apple Watch.
Unpair the Apple Watch from the old iPhone when possible. Open the Watch app, select All Watches, tap the information icon, choose Unpair Apple Watch, and follow the prompts. Unpairing creates a current watch backup and removes Activation Lock correctly.
Pair the Apple Watch with the new iPhone. Open the Watch app on the new iPhone, tap All Watches, select Add Watch, and scan the pairing animation. Enter the Apple ID password if requested.
Restore the watch backup. Select Restore from Backup, choose the latest backup, and keep both devices near each other until synchronization finishes.

Common Issues and Fixes

The Apple Watch does not appear: Confirm Bluetooth and Wi-Fi are enabled, then restart both devices and reopen the Watch app.
No backup is available: Verify that the old iPhone backup completed after the latest watch activity. An encrypted computer backup may be required for complete Health and Activity history.
Activation Lock blocks pairing: Enter the Apple ID credentials previously linked to the Apple Watch. Account removal from the old iPhone may be required.
The old iPhone is unavailable: Erase the Apple Watch from Settings > General > Reset > Erase All Content and Settings, then pair the watch as new or restore from an available iPhone backup.
The watch requires a software update: Update the new iPhone first, then install the required watchOS update during setup.

Quick Tips

Keep the Apple Watch charged above 50% during pairing and software updates.
Do not erase the old iPhone until watch data, Health history, and Activity records appear on the new iPhone.
A cellular Apple Watch may require carrier plan confirmation after the move.
Apple Pay cards and some device settings usually require manual reconfiguration after restoration.

Can an Apple Watch pair with a new iPhone without the old iPhone?

Yes. Erase the Apple Watch and pair it with the new iPhone. Personal settings and some historical data may not return without a usable backup.

Does moving an Apple Watch to a new iPhone delete watch data?

Unpairing normally creates a backup before removal. Pairing without a backup can erase watch settings, locally stored content, and some activity history.

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