How to Pair Apple Watch to a New Phone: Step by Step Guide

Switching to a new iPhone is exciting, but when your Apple Watch doesn’t automatically connect, it can feel like a hurdle. Whether you have both phones in hand or only the new one, pairing your watch takes a few straightforward steps—and a little planning can save you from a headache.

Minutes to complete pairing: 10 ·
Steps to unpair an Apple Watch: 5 ·
Required iOS for watchOS 10: 16 or later ·
Apple Watch models compatible (as of 2025): 9 ·
Users who encounter pairing issues: < 5%

Five key facts, one pattern: every successful pairing rests on the same foundation—a properly unpaired and backed‑up watch, a compatible iPhone, and a stable Wi‑Fi connection.

Why this matters: missing any one of these basics is the most common reason pairing fails.

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

Check compatibility and update iOS

• Your iPhone must be iPhone 6s or later with iOS 14+ (or iOS 16+ for watchOS 10) (Apple Support)
• The Apple Watch needs at least 50% charge (Apple Support)
• Both devices should be updated to the latest software versions (Apple Support)

Open the Apple Watch app on your new iPhone, go to My Watch, tap All Watches, and make sure the watch is unlocked and on your wrist. If the pairing didn’t complete during iPhone setup, tap Finish Pairing (Apple Support).

Turn on Bluetooth and Wi‑Fi

• Bluetooth and Wi‑Fi must be enabled on both the old and new iPhones (Apple Support)
• Keep the watch close to the iPhone during pairing (Apple Watch User Guide)

Hold your iPhone near the Apple Watch. When the pairing screen appears, tap Continue. If it doesn’t appear, open the Apple Watch app and tap Pair New Watch (Apple Watch User Guide).

Follow the on‑screen pairing animation

• Position the watch face inside the iPhone’s viewfinder to scan the animation
• If the animation doesn’t show, restart both devices and try again (Apple Support)
• After pairing, devices sync automatically (Apple Watch User Guide)

What this means: if you have both phones ready, the whole process takes about 10 minutes. The critical step is verifying your iPhone is compatible and fully charged before you start.

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

Backup your Apple Watch automatically

• Unpairing via the Watch app automatically creates an iCloud backup (Apple Support)
• Make sure your old iPhone is connected to Wi‑Fi (Apple Support)

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. Confirm to remove the watch and back up its data to iCloud (Apple Support).

Unpair from your old iPhone via the Watch app

1. Follow the app’s prompts—this removes Activation Lock if the watch is connected (Apple Support Communities)
2. If you can’t access the old iPhone, erase the watch directly from Settings > General > Reset > Erase All Content and Settings (Apple Support Communities)

After unpairing, the watch is erased and enters pairing mode. You can now pair it with your new iPhone using the standard process.

Reset the Apple Watch if old iPhone is not available

• Erase via the Watch: Settings > General > Reset > Erase All Content and Settings (Apple Support Communities)
• Hard reset: press and hold the side button until Power Off appears, then press and hold the Digital Crown (Apple Support)

Pair to the new iPhone using the standard process

1. Hold the watch near the new iPhone and tap Continue when prompted (Apple Watch User Guide)
2. If no prompt appears, open the Apple Watch app and tap Pair New Watch (Apple Watch User Guide)
3. Follow the pairing animation and sync step (Apple Watch User Guide)

The catch: if you skip the unpairing step, your new iPhone may ask you to Start Pairing, which means you’ll have to unpair first and then set up again (Apple Support).

Why won’t my Apple Watch connect to my new phone?

Check that Bluetooth and Wi‑Fi are on

• The most common cause: the Watch is still paired to another iPhone (Apple Support)
• Go to Settings on your iPhone and toggle Bluetooth and Wi‑Fi off and on again (Apple Support)
• If the watch shows a red X, unpair and reset it (Apple Support)

Restart both devices. On the watch, press and hold the side button until Power Off appears, then slide to power off. On the iPhone, press and hold the side button and either volume button until the slider appears (Apple Support).

Ensure both devices are on the same Apple ID

• You need your Apple Account and password (Apple Support)
• If the watch asks for the Apple ID, it’s the one used when the watch was first set up (Apple Support Communities)

If you see a lock icon or an Activation Lock request, visit iCloud.com, sign in, and remove the watch from your account (Apple Support).

Restart both iPhone and Apple Watch

• A simple restart often clears temporary pairing glitches
• Force restart the watch by holding the side button and Digital Crown for 10 seconds (Apple Support)

After restarting, try the pairing process again. Make sure you’re within 2–3 feet of the watch.

Update to the latest iOS and watchOS versions

• iOS 16 or later is required for watchOS 10 (Apple Support)
• On the iPhone, go to Settings > General > Software Update
• On the watch, open the Watch app > General > Software Update (Apple Support)

What do I do if my Apple Watch is still paired to my old phone?

Use the Watch app on the old iPhone to unpair remotely

• If you still have the old iPhone, follow the unpairing steps above (Apple Support)
• This will create an iCloud backup and remove Activation Lock (Apple Support)

This is the safest method because it preserves your health and activity data.

Erase the Apple Watch directly from the Watch itself

• Tap Settings > General > Reset > Erase All Content and Settings (Apple Support Communities)
• A hard reset (side button + Digital Crown) can be used if the watch is unresponsive (Apple Support)

After erasing, the watch will restart and show the pairing screen.

Remove the device from your Apple ID account

• Go to iCloud.com, sign in, and click Find iPhone (or Find Devices)
• Select the watch and remove it from the account (Apple Support)

This step is essential to clear Activation Lock.

After reset, pair with new iPhone

• Hold the watch near the new iPhone and tap Continue (Apple Watch User Guide)
• If the watch asks for a passcode, enter its previous passcode (Apple Support Communities)

What this means: you can salvage the situation without the old iPhone, but you’ll lose any health data that wasn’t backed up. For most users, the trade‑off is acceptable if the old phone is gone.

How to reset Apple Watch for pairing with a new phone?

Hard reset using the side button and Digital Crown

1. Press and hold the side button until you see the Power Off screen
2. Then press and hold the Digital Crown until the watch restarts (Apple Support)

This forces a restart without erasing data. Use it when the watch is frozen.

Erase all content and settings via the Watch

• Go to Settings > General > Reset > Erase All Content and Settings (Apple Support Communities)
• Keep the watch on its charger during the erase process to avoid interruption.

Force restart if the Watch is unresponsive

• Hold both the side button and Digital Crown for at least 10 seconds, then release when the Apple logo appears (Apple Support)

After the restart, the watch should show the pairing screen. If it doesn’t, you may need a service visit (Apple Support).

Manually initiate pairing after reset

• Open the Apple Watch app on your new iPhone and tap Pair New Watch (Apple Watch User Guide)
• Hold your iPhone near the watch and follow the on‑screen animation

The catch: a full reset that doesn’t go through the official unpairing path will leave Activation Lock enabled, so have your Apple ID and password ready.

“If the iPhone does not ask whether you want to use the Apple Watch during setup, you can still set up the watch manually in the next step.”

— Apple Support

“Activation Lock may require your Apple ID password before pairing to a new phone”

— Apple Support (troubleshooting)

“Hold your iPhone near the Apple Watch. When the pairing screen appears, tap Continue.”

— Apple Watch User Guide

For the user who just wants the watch on their wrist as fast as possible, the clearest path is to unpair from the old phone (if available) or erase directly and then remove the watch from iCloud. The trade‑off is lost data if you skip the backup. In Apple’s own words, “If you unpair while the Watch is connected, Activation Lock is removed” (Apple Support).

Related reading: How to pair an Apple Watch with a new iPhone · Set up your Apple Watch with your new iPhone

Before pairing your Apple Watch to a new phone, you may need to erase it first, which is covered in our guide on How to Reset Apple Watch.

Frequently asked questions