How to Pair Apple Watch to New Phone: Step-by-Step

Compatible iPhones: iPhone 8 or later for Apple Watch Series 4 and newer · Pairing time: Approximately 5 minutes under normal conditions · Backup required: iCloud backup is created automatically upon unpairing · Data loss risk: Minimal if iCloud backup is enabled

Four key data points, one standout: the backup that’s created during unpairing is the safety net that makes the whole transfer possible.

How do I pair my existing Apple Watch to my new iPhone?

Preparing your Apple Watch and new iPhone

• Update both devices to the newest available versions (Apple Support)
• Keep your Apple Watch unlocked and on your wrist
• Make sure your new iPhone is connected to Wi‑Fi or cellular
• Have your Apple Watch passcode ready (Apple Support)

Step-by-step pairing process

1. Open the Apple Watch app on your new iPhone.
2. Tap Pair New Watch (Apple Watch User Guide).
3. Bring your iPhone near the Apple Watch and position the watch in the viewfinder when prompted.
4. Wait for the pairing animation to complete, then tap Continue.
5. Choose Restore from Backup if you have a recent iCloud backup, or set up as new.
6. Sign in with the same Apple ID used on the old phone (Apple Support).

What to do if the Apple Watch app doesn’t open

If the app doesn’t appear, restart your iPhone. Pairing can also be initiated by bringing the iPhone near the watch and tapping Continue when the pairing screen appears (Apple Watch User Guide).

The implication: getting the unpair step right eliminates most problems.

How to unpair an Apple Watch and pair with a new phone?

Unpairing from the old iPhone

• Open the Watch app on your old iPhone.
• Tap My Watch > All Watches.
• Tap the info icon next to your watch, then tap Unpair Apple Watch (Apple Support).
• Enter your Apple ID password to disable Activation Lock.
• Unpairing automatically creates an iCloud backup of the watch.

Unpairing directly from the Apple Watch (if old phone is unavailable)

Go to Settings > General > Reset > Erase All Content and Settings (Apple Support). This removes all data and Activation Lock when the watch is still linked to your Apple ID. If you have iCloud backup, select Erase All Content and Settings and confirm — the watch will restart as factory new.

Pairing to the new iPhone after unpairing

After unpairing or erasing, follow the standard pairing steps in the guide above. The watch will appear as a new device in the Apple Watch app.

The pattern: always aim to unpair before erasing.

Can I pair my watch without my old phone?

If you have the old phone but it’s not available

If the old phone is powered off or not nearby, you can still unpair by erasing the watch directly as described above. No need to locate the old device.

If the old phone is lost or broken

• Erase the Apple Watch from the watch itself (Settings > General > Reset > Erase All Content and Settings).
• Alternatively, use iCloud.com or Find My to erase the watch remotely (Apple Support Community).
• After erasing, sign in to iCloud on the new iPhone, then pair the watch again in the Apple Watch app.

Using iCloud backup to restore

If you had iCloud backup enabled on the old watch (created during the last successful unpair), you can restore that backup when setting up on the new phone. Without a backup, some data — especially third‑party app settings — may be lost.

The consequence: account credentials are non‑negotiable.

What if you can’t pair your Apple Watch with a new iPhone?

Check compatibility and software requirements

• Your new iPhone must run iOS 16 or later for watchOS 9+ (Apple Support).
• Your Apple Watch should be charged above 50%.

Ensure Bluetooth and Wi-Fi are on

Both Bluetooth and Wi‑Fi must be enabled on the iPhone. Go to Settings > Bluetooth and Settings > Wi‑Fi to verify.

Restart both devices

Restart the iPhone and Apple Watch. For a hard restart on the watch, press and hold the side button until the power menu appears, then slide to power off.

Reset network settings

If pairing still fails, reset the iPhone’s network settings (Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings). This clears Wi‑Fi passwords and Bluetooth pairings, so you’ll need to reconnect after.

If all else fails, erase the Apple Watch and set it up as new (Apple Support).

The fix: erasing resets everything.

How do you unpair an Apple Watch without the phone it’s paired to?

Unpairing from the watch itself

Open Settings on your Apple Watch, tap General > Reset > Erase All Content and Settings. This removes all content, including the pairing, and disables Activation Lock if the watch is still linked to your Apple ID (Apple Support).

Preserving data through iCloud backup

If the watch had been previously backed up via iCloud (which happens automatically during normal unpairing from an old phone), you can restore that backup after re‑pairing. Data created after the last backup will be lost.

What to do if you forgot the watch passcode

You cannot erase the watch from the device without the passcode. In this case, you must force‑restart the watch and erase it using the watch’s internal reset sequence (press and hold the side button and Digital Crown for 10 seconds, then release when the Apple logo appears and follow the on‑screen prompts). Alternatively, use Find My on iCloud.com to erase the watch remotely (Apple Support Community).

“Unpair your Apple Watch from your iPhone to save a backup of your Apple Watch data, then pair it with a new iPhone.”

— Apple Support (official help page)

“If the old iPhone is unavailable, you can erase the Apple Watch directly from the watch itself by going to Settings > General > Reset > Erase All Content and Settings.”

— Apple Support Community

If you’re upgrading your device, you’ll find that pairing Apple Watch to a new iPhone follows a similar step-by-step process whether you have both phones or just the new one.

Frequently asked questions

For anyone moving to a new iPhone, the choice is clear: unpair from the old phone when possible, or erase the watch directly if the old phone is gone. The few minutes spent on the correct first step save hours of troubleshooting later.

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