If your Apple Watch will not pair with an iPhone 16, first check that the watch model and its software are compatible, then confirm both devices are ready and connected. If you are moving the watch from an old iPhone, find out whether it is still paired to that phone before erasing it: a reset alone does not remove Activation Lock.
1. Check that your Apple Watch can pair with your iPhone 16
Compatibility depends on the exact Apple Watch model and the software it runs—not just on the iPhone 16. Look up your model in Apple’s Apple Watch and iPhone compatibility table, then install the latest iOS available for your iPhone and the latest watchOS available for the watch.
For the watchOS 26 setup instructions, Apple specifies iPhone 11 or later with iOS 26 or later for Apple Watch SE, Series 6, Ultra, or later running watchOS 26 or later. Those requirements apply to the listed models and software; they should not be assumed to cover every older watch or watchOS combination.
2. Get both devices ready
- Keep the unlocked watch close to the iPhone.
- Turn on Bluetooth and connect the iPhone to Wi-Fi or cellular.
- Make sure Airplane Mode is off on both devices.
- Charge both devices. For a transfer to a new iPhone, Apple says the watch and new iPhone should each be at least 50% charged, and both the old and new iPhones need Wi-Fi.
Apple’s watchOS 26 setup guide covers the general setup conditions. For moving a watch, see Apple’s new-iPhone transfer instructions.
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![Apple Watch Series 11 [GPS 46mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - M/L. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/416RQ0rtsUL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
3. Pair the watch or finish its transfer
Pairing for the first time
- Put the unlocked Apple Watch on your wrist and hold it near the iPhone 16.
- Open the Watch app on the iPhone and follow the onscreen pairing instructions.
- If the camera cannot read the pairing animation, tap Pair Apple Watch Manually and follow the prompts.
Apple’s pairing troubleshooting guide explains the manual pairing option.
Moving the watch from an old iPhone
- Update the old iPhone and Apple Watch, then back up the old iPhone.
- Set up the new iPhone and restore it from the old iPhone’s backup, if applicable.
- Keep the unlocked watch near the new iPhone and open the Watch app. Follow the prompt to transfer the watch.
- If the iPhone instead offers Start Pairing, unpair the watch from the old iPhone before setting it up again.
If iPhone setup is already complete, open the Watch app and check My Watch > All Watches. If you see Pairing Not Complete, choose Finish Pairing with the unlocked watch on your wrist. Apple’s new-iPhone pairing recovery steps cover this situation.
Rank #2
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/41s72HIk5TL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
4. Check whether the watch is still paired to the old iPhone
A watch face appearing while you try to pair is a clue that the watch is already paired to an iPhone. If the old iPhone is available, unpair it there rather than erasing the watch directly:
- Open the Watch app on the old iPhone.
- Tap All Watches, then tap the information button beside the watch.
- Choose Unpair Apple Watch and follow the prompts.
Unpairing through the old iPhone erases the watch, removes it from the iCloud account, removes Activation Lock, and prepares it for setup with the new phone, according to Apple’s pairing instructions.
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![Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31caPPnRysL._SL160_.jpg)
- A FULL-FEATURED HEALTH TRACKER—Apple Watch Series 11 gives you invaluable insights about your body, right from your wrist. Take an ECG anytime* and get alerts for a high and low heart rate or an irregular rhythm*—so you can stay closer to your heart. You can also view your overnight health tracking metrics with the Vitals app* and be notified of possible sleep apnea.*
- KNOW YOUR SLEEP SCORE—With advanced sleep tracking, Series 11 gives you a daily sleep score. It’s an easy way to help measure and understand the quality of your sleep, so you can make it more restorative.
- GET HYPERTENSION NOTIFICATIONS—Did you know that Series 11 can spot signs of chronic high blood pressure? By analyzing how your blood vessels respond to beats of the heart, it can notify you of possible hypertension.*
- SAFETY FEATURES—A smartwatch that puts your safety first. Series 11 can detect a hard fall or severe car crash, automatically help connect you with emergency services, and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- A POWERFUL FITNESS TRACKER—With advanced metrics and motivating features like Pacer, Heart Rate Zones, training load, and Workout Buddy powered by Apple Intelligence from your nearby iPhone*—Series 11 is made to help everyone stay active, from runners and hikers to strength-training enthusiasts.
If the old iPhone is unavailable
You can erase the watch from its own settings and try pairing it again, but erasing it this way does not remove Activation Lock. You will need the Apple Account and password used to set up the watch. If it was bought used and you do not have those credentials, contact the previous owner; if that is not possible, contact Apple Support. A reset is not a way around Activation Lock. Apple’s Apple Watch setup guidance explains the lock and setup requirements.
5. Recover from a pairing screen that will not advance
Pairing animation stays on screen
If the pairing animation remains for several minutes, Apple says resetting the watch from pairing mode may help. Follow the pairing-mode reset steps in Apple’s pairing troubleshooting guide, then retry setup.
Rank #4
![Apple Watch SE 3 [GPS 40mm] Smartwatch with Midnight Aluminum Case with Midnight Sport Band - S/M. Fitness and Sleep Trackers, Heart Rate Monitor, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31Gq8SToFJL._SL160_.jpg)
- GET SMARTER HEALTH INSIGHTS—Apple Watch SE 3 is an advanced health tracker that helps you better understand your body. The smartwatch sends alerts for an irregular heart rhythm, or an unusually high or low heart rate.* You can view your overnight health tracking metrics with the Vitals app,* track your sleep score, and get sleep apnea notifications.*
- A GREAT FITNESS TRACKER—SE 3 can track your workouts in a healthy number of ways—from running and strength training to simply achieving your 10K steps a day. With real-time metrics and Workout Buddy powered by Apple Intelligence from your nearby iPhone,* you’ll hit your goals like never before.
- KEEP HELP CLOSE AT HAND—SE 3 is a smartwatch that can detect a hard fall or severe car crash and automatically help connect you to emergency services and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- WOMEN’S HEALTH INSIGHTS—SE 3 has advanced sensors that track your wrist temperature while you sleep. With this smartwatch, you can log your periods and symptoms, get period predictions, and get notified of cycle deviations.*
- GREAT BATTERY LIFE AND FASTER CHARGING—Enjoy a smartwatch with all-day, 18-hour battery life* from sunup to sundown. Then charge up to twice as fast as SE 2* and get up to 8 hours of battery in just 15 minutes.*
Transfer is stuck on a black screen with a white Apple logo
This is a different symptom from a stalled pairing animation. Apple’s new-iPhone recovery instructions say to restart the watch by holding the Digital Crown and side button until it restarts, then choose Reset and try pairing again.
Devices appear paired but will not connect
Check that Airplane Mode is off, Bluetooth is on, and the iPhone has Wi-Fi or cellular connectivity. Restart the iPhone and Apple Watch, then check whether they reconnect. Apple’s connection troubleshooting steps cover these checks.
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![Apple Watch SE 3 [GPS 44mm] Smartwatch with Midnight Aluminum Case with Midnight Sport Band - M/L. Fitness and Sleep Trackers, Heart Rate Monitor, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/41IZwhp9VXL._SL160_.jpg)
- GET SMARTER HEALTH INSIGHTS—Apple Watch SE 3 is an advanced health tracker that helps you better understand your body. The smartwatch sends alerts for an irregular heart rhythm, or an unusually high or low heart rate.* You can view your overnight health tracking metrics with the Vitals app,* track your sleep score, and get sleep apnea notifications.*
- A GREAT FITNESS TRACKER—SE 3 can track your workouts in a healthy number of ways—from running and strength training to simply achieving your 10K steps a day. With real-time metrics and Workout Buddy powered by Apple Intelligence from your nearby iPhone,* you’ll hit your goals like never before.
- KEEP HELP CLOSE AT HAND—SE 3 is a smartwatch that can detect a hard fall or severe car crash and automatically help connect you to emergency services and notify your emergency contacts.* Check In can automatically notify a loved one when you’ve arrived at your destination.
- WOMEN’S HEALTH INSIGHTS—SE 3 has advanced sensors that track your wrist temperature while you sleep. With this smartwatch, you can log your periods and symptoms, get period predictions, and get notified of cycle deviations.*
- GREAT BATTERY LIFE AND FASTER CHARGING—Enjoy a smartwatch with all-day, 18-hour battery life* from sunup to sundown. Then charge up to twice as fast as SE 2* and get up to 8 hours of battery in just 15 minutes.*
Back up before erasing or transferring
Apple says an iPhone backup also backs up the Apple Watch. Before migration, back up the old iPhone using iCloud or a computer. To retain Health and Activity content with a computer backup, encrypt that backup; alternatively, use iCloud Health syncing if it is enabled. If no watch backup is available, you will need to set up the watch as new, and changes made since the last backup may not be restored. See Apple’s transfer and backup guidance for details.
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