The basic process: unpair, then pair again

When you get a new iPhone, your Apple Watch doesn't automatically switch over. You need to unpair it from your old phone first, then pair it to the new one. The watch keeps its own settings and data during this process — you're not starting from scratch.

The whole thing takes about 15 to 20 minutes if your internet connection is steady. Most of that time is the watch downloading updates and syncing your apps back from iCloud.

Key Takeaways

  • Unpair your watch from the old iPhone using the Watch app before you set up the new phone, or do it during new iPhone setup.
  • Your watch backs up to iCloud automatically, so your settings, health data, and installed apps restore when you pair to the new iPhone.
  • The watch and iPhone must be on the same Wi-Fi network and have Bluetooth turned on for pairing to work.
  • If pairing stalls, restart both devices and make sure your Apple ID password is correct on the new iPhone.

Unpair your watch from the old iPhone

Open the Watch app on your old iPhone. Tap the My Watch tab at the bottom, then tap the watch name at the top. Scroll down and tap Unpair Apple Watch. You'll be asked to enter your Apple ID password — this protects your watch data and prevents someone else from pairing it to their phone.

If you no longer have access to the old iPhone, you can skip this step and unpair during setup on the new phone. The new iPhone will give you the option to unpair remotely using your Apple ID.

Start pairing on your new iPhone

When you set up your new iPhone, you'll see a screen that says "Set Up Apple Watch" after you sign in with your Apple ID. Tap Continue. If you skip this screen, you can pair later by opening the Watch app and tapping Start Pairing.

Hold your watch close to the new iPhone. The watch screen will show an animation. Keep the watch steady in the iPhone's camera view until the pairing animation completes — this usually takes 10 to 15 seconds.

What happens during the restore

After pairing, your watch will restore from its iCloud backup. This means your watch faces, complications, health and fitness data, and most of your installed apps come back automatically. You don't have to set them up again.

The watch will download any apps that were installed before. Some apps may need to be reinstalled from the App Store on your iPhone if they were removed or if the developer no longer supports them. The watch will show a progress screen while this happens — let it finish even if it seems slow.

Make sure Bluetooth and Wi-Fi are on

Your watch and iPhone talk to each other over Bluetooth, and the watch needs Wi-Fi to download updates and sync data. Turn on Bluetooth in your iPhone's Control Center (swipe down from the top right). Make sure both devices are on the same Wi-Fi network — check Settings > Wi-Fi on your iPhone and Settings > Wi-Fi on your watch.

If you're at home, your watch should connect to your home Wi-Fi automatically if it was connected before. If you're somewhere else, you may need to enter the Wi-Fi password on the watch.

Troubleshooting if pairing gets stuck

If the pairing animation doesn't appear or the watch doesn't restore, restart both devices. Press and hold the side button on your watch until the power-off slider appears, then slide to turn it off. Wait 10 seconds, then press and hold the side button again until the Apple logo appears. On your iPhone, hold the side button and volume button until the power-off slider appears, then slide to turn it off. Wait 10 seconds and turn it back on.

Make sure you're signed into the new iPhone with the same Apple ID you use on your watch. Go to Settings > [Your Name] and check that the email address matches the one you use for iCloud. If you changed your Apple ID password recently, sign out and sign back in with the new password.

If the watch still won't pair, try forgetting the watch from your iPhone's Bluetooth settings. Go to Settings > Bluetooth, find your watch name, tap the info icon, and tap Forget This Device. Then try pairing again from the Watch app.

What to do if you don't have the old iPhone anymore

If you sold or recycled your old iPhone before unpairing, you can still pair your watch to the new one. During setup, when you see the pairing screen, tap "Pair Apple Watch Manually" at the bottom. Then tap "Don't have your old Apple Watch?" and choose "Unpair from a Previous iPhone." Sign in with your Apple ID and the watch will unpair remotely.

Your watch will then pair to the new iPhone and restore from your iCloud backup just like normal. This process takes a few extra minutes because the unpair happens over the internet.

Frequently Asked Questions

Will I lose my health and fitness data when I pair to a new iPhone?

No. Your health data, activity rings, and workout history are stored on the watch itself and also backed up to iCloud. When you pair to the new iPhone, everything restores automatically. The data stays yours even if you switch between iPhones.

Can I pair my watch to two iPhones at the same time?

No. A watch can only be paired to one iPhone at a time. If you try to pair it to a second iPhone, it will unpair from the first one automatically. This is a security feature to keep your health data and notifications private.

What if my watch is a different model than my old one?

The pairing process is the same no matter which watch model you have. Your backup will restore to the new watch, though some watch faces or features may not be available if the new watch is an older model. You can still use all your health data and most of your apps.

How long does the whole process take?

Pairing itself takes 10 to 15 seconds. The restore — downloading updates and syncing apps — usually takes 10 to 15 minutes depending on how many apps you have and your internet speed. If your watch needs a major software update, it can take longer.

Do I need to unpair my watch before I sell my old iPhone?

Yes. Unpair it first so the next owner can't see your health data or get notifications meant for you. If you forget, you can unpair remotely from your new iPhone by opening the Watch app, tapping the watch name, scrolling down, and tapping Unpair Apple Watch.