Pairing an Apple Watch with an iPhone takes about five minutes when everything works first time, but a Bluetooth error, a stuck pairing screen, or a watchOS and iOS mismatch can turn it into an hour of frustration. This guide covers every pairing method, from the standard camera scan to manual pairing when the camera will not work, how to switch a watch to a new iPhone, and fixes for the most common connection failures.

Quick answer: how to pair your Apple Watch

  • Update your iPhone to the latest available iOS version and make sure the Apple Watch app is installed.
  • Turn on Bluetooth and Wi-Fi on your iPhone, and keep both devices within a few centimetres of each other.
  • Open the Watch app, tap “Pair New Watch”, and point your iPhone camera at the animation shown on the watch face.
  • Follow the prompts to choose “Set Up as New Apple Watch” or restore from a backup.
  • If the camera will not scan, tap “Pair Apple Watch Manually” at the bottom of the screen and enter the code shown on the watch instead.

What you need before you start

Every Apple Watch pairs with an iPhone 8 or later running a compatible, up to date version of iOS, though the newest watch models need a newer handset: Apple Watch Series 9 and later, and Apple Watch Ultra 2 and later, require iPhone XS or later. Before you start, check that you have the following.

  • A compatible iPhone signed in with an Apple ID, with a working internet connection.
  • Bluetooth and Wi-Fi switched on, and Airplane Mode switched off.
  • Your Apple Watch charged to at least 50 percent, with both devices sitting close together.
  • A watch that has been factory reset or unpaired if it was previously linked to another Apple ID. Buying secondhand? See our guide on how to unpair an Apple Watch to clear Activation Lock first.

If your iPhone itself is the problem, for example a cracked screen that stops the camera focusing properly, or a battery that will not hold enough charge to get through setup, pairing will keep failing no matter what you try on the watch side. Our iPhone screen repair and iPhone battery replacement services can get your handset back to full working order first.

How to pair an Apple Watch to iPhone for the first time

  1. Charge your Apple Watch for at least 15 to 20 minutes before you begin.
  2. Turn on the Apple Watch by holding the side button until the Apple logo appears.
  3. Bring the watch close to your iPhone. A “Use your iPhone to set up this Apple Watch” prompt should appear on your iPhone automatically. If it does not, open the Watch app and tap “Pair New Watch” or the plus icon in the top corner.
  4. Tap “Continue”, then hold your iPhone so the animated pattern on the watch face sits inside the camera viewfinder.
  5. Once the watch shows “Paired”, agree to the terms and conditions and sign in with your Apple ID if prompted.
  6. Choose “Set Up as New Apple Watch” or “Restore from Backup”, then select your wrist and preferred settings for Siri, Wrist Detection and analytics.
  7. Set or skip a passcode, and choose whether to enable Apple Pay.
  8. Leave both devices near each other and connected to Wi-Fi while the watch finishes syncing apps and settings. This can take anywhere from a few minutes to over an hour depending on how much data is being restored.

How to pair manually if the camera will not scan

If your iPhone camera cannot focus on the pairing animation, whether that is because of a cracked lens, poor lighting or a stiff shutter button blocking the view, you can enter a code by hand instead.

  1. On the Apple Watch, tap the small “i” information icon on the pairing screen.
  2. This reveals a six digit code, for example 123 456.
  3. On your iPhone, open the Watch app, tap “Pair New Watch”, then tap “Pair Apple Watch Manually” at the bottom of the screen.
  4. Select your Apple Watch from the list, then enter the six digit code shown on the watch.
  5. Continue through the same setup steps as the camera method: choose your wrist, sign in, and set up as new or restore from backup.

Setting up as new vs restoring from a backup

“Set Up as New Apple Watch” gives you a clean device with no apps, health data or settings carried over, which is the right choice for a brand new watch or one bought secondhand. “Restore from Backup” reinstalls your apps, watch faces, complications and most settings from your most recent iCloud backup, which is what you want when replacing a lost, damaged or upgraded watch with the same Apple ID.

If you are moving from an older Apple Watch to a new one, unpair the old watch first so it creates a fresh backup automatically. Our step by step guide to unpairing an Apple Watch covers this, including how to remove Activation Lock so the old watch can be sold or handed on safely.

How to connect a second Apple Watch to the same iPhone

An iPhone can only have one Apple Watch actively connected as its primary watch at a time. If you own two watches, for example a Series model for everyday use and an Ultra for sport, you need to unpair whichever one is currently connected before pairing the other. Go to the Watch app, tap the currently paired watch, tap the info icon, then “Unpair Apple Watch” before starting the pairing process again with the second one.

The exception is Family Setup, available on cellular Apple Watch Series 6 and later and Ultra models, which lets you pair an additional watch to your iPhone on behalf of a child or relative who does not have their own iPhone. Family Setup is started from the Watch app under “Family Setup” rather than the standard “Pair New Watch” flow.

How to switch your Apple Watch to a new iPhone

  1. On your old iPhone, open the Watch app, select your watch, tap the info icon and choose “Unpair Apple Watch”. This automatically creates a fresh backup before disconnecting.
  2. Sign in to the same Apple ID on your new iPhone and restore your other data if needed.
  3. Open the Watch app on the new iPhone and follow the standard first time pairing steps above.
  4. Choose “Restore from Backup” and select the backup created when you unpaired the watch on your old iPhone.

For the full walkthrough on removing a watch safely, including what happens to Activation Lock and cellular plans, see how to unpair an Apple Watch.

Common pairing problems and how to fix them

Bluetooth will not turn on, or the toggle is greyed out. Restart your iPhone and check Settings, then Screen Time, then Content and Privacy Restrictions, to make sure Bluetooth has not been locked by a restriction profile.

“Unable to pair with Apple Watch” error. Force restart both devices, move away from other Bluetooth accessories such as headphones or speakers that might be interfering, and confirm your iPhone is running a compatible iOS version for your watch model.

Pairing stuck on a spinning wheel. Large backups can genuinely take 30 minutes or more to restore. Keep both devices on charge, close together, and connected to Wi-Fi rather than mobile data, and avoid closing the Watch app.

Watch does not appear in the Watch app at all. Make sure the watch is showing its pairing screen and not already linked to another Apple ID. Secondhand watches often still show “This Apple Watch is linked to an Apple ID” or an Activation Lock screen; our unpairing guide explains how to clear this, and our Apple Watch reset guide covers a full factory reset from the watch itself if you no longer have access to the original owner’s iPhone.

The watch will not turn on to start pairing. This is almost always a battery or charging fault rather than a pairing problem. If the watch will not hold charge or will not power on at all after a long charge, our Apple Watch battery replacement and Apple Watch charging repair services can diagnose and fix it.

The watch screen is cracked or unresponsive, so you cannot tap through setup. A damaged display can stop you confirming prompts or entering a passcode during pairing. Our Apple Watch screen repair service replaces cracked or dead displays so the watch is usable again before you try pairing.

The problem is actually the iPhone, not the watch. A phone that will not turn on, has a smashed screen, or has a battery so worn it dies mid setup will block pairing regardless of the watch’s condition. See our iPhone repairs page or book a charging port repair if the handset will not stay powered on long enough to finish setup.

Which Apple Watch models can pair with your iPhone

Every Apple Watch model pairs using the same process described above. The table below shows the minimum iPhone needed for each, and links through to model specific repair information and pricing if your watch needs fixing before, or instead of, pairing it.

Apple Watch modelMinimum iPhone required
Apple Watch Ultra 3iPhone XS or later
Apple Watch Ultra 2iPhone XS or later
Apple Watch UltraiPhone 8 or later
Apple Watch Series 11iPhone XS or later
Apple Watch Series 10iPhone XS or later
Apple Watch Series 9iPhone XS or later
Apple Watch Series 8iPhone 8 or later
Apple Watch Series 7iPhone 8 or later
Apple Watch Series 6iPhone 8 or later
Apple Watch Series 5iPhone 8 or later
Apple Watch SE (2nd Gen)iPhone 8 or later
Apple Watch SE (1st Gen)iPhone 8 or later

Not sure which model you have engraved on the back, or need pricing for a specific repair before you pair it? Visit our full Apple Watch repair hub for every model.

Frequently asked questions

Can I pair an Apple Watch without an iPhone?

Not for the initial setup. Apple Watch always needs an iPhone to complete first time pairing. The one exception is Family Setup, which lets a family member’s iPhone pair an additional cellular Apple Watch on behalf of someone who does not own an iPhone themselves, after which that watch can be used somewhat independently.

Can I pair an Apple Watch with an Android phone?

No. Apple Watch only works with an iPhone. There is no official or reliable way to pair it with an Android device.

Why does pairing say a watchOS update is required?

Some newer iPhones need a newer watchOS version than an older Apple Watch is currently running. Keep both devices connected to Wi-Fi and power during pairing so the update can download and install automatically before setup continues.

How long does pairing take?

Pairing itself takes a couple of minutes, but restoring apps and data from a backup can add anywhere from five minutes to over an hour depending on how much was on your previous watch.

Do I need Wi-Fi, or is Bluetooth enough to pair?

Bluetooth handles the initial connection, but Wi-Fi is needed to download any required software updates and to restore apps and data, so keep both switched on throughout.

Can I use my old Apple Watch with a new iPhone without losing data?

Yes, as long as you unpair the watch from your old iPhone first rather than just switching it off. Unpairing creates a fresh backup that can be restored onto the same watch once it is paired with your new iPhone.

What if I forgot to unpair my Apple Watch before selling it?

The new owner will be blocked by Activation Lock and unable to pair it to their own iPhone. You can remove this remotely from your Apple ID at icloud.com, or by signing back into the Watch app if you still have access to it. See our guide to unpairing an Apple Watch for the full steps.

Still can’t get your Apple Watch to connect?

If you have worked through every step above and your Apple Watch or iPhone still will not pair, the cause is usually hardware rather than software: a failing battery, a damaged charging port, a cracked screen, or a broken button that stops you confirming prompts. Our engineers diagnose and repair all of these issues on the same day in most cases.

You might also find our related guides useful: how to reset an Apple Watch and how to unpair an Apple Watch. Or get in touch with our team directly on the contact us page and we will point you in the right direction.

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