How Do I Connect My iPhone to My Watch? 

If you have an existing iPhone and need to connect a new Apple Watch, follow these steps for the quickest set up:

How Do I Manually Pair My Apple Watch?

In some cases, you can’t pair the new Apple Watch to your iPhone automatically and will need to do it manually. In that case, follow these steps:

Why Is My Apple Watch Not Pairing With My iPhone?

If neither option is working and you can’t pair Apple Watch with iPhone, here are some potential causes and solutions:

Watch Is Already Paired to Another iPhone: Each Apple Watch can only be paired to one iPhone (though an iPhone can be paired to more than one Apple Watch). If pairing isn’t working, your watch might be connected elsewhere. To unpair the watch, you can either remove it from the iPhone it’s currently paired to (go to the Watch app > My Watch > All Watches > i > Unpair Apple Watch) or reset it directly on the watch (go to Settings > General > Reset > Erase All Content and Settings > confirm), but you’ll need the Apple ID used to activate the watch originally. Activation Lock is Active on the watch: If you bought the watch used from someone and can’t pair it, it might be protected by Apple’s anti-theft Activation Lock feature. If so, contact the person you got it from and ask them to remove Activation Lock. Bluetooth and Wi-Fi Are Disabled on iPhone: The iPhone and Apple Watch communicate over Bluetooth and Wi-Fi, so if either is disabled, the process won’t work. Make sure they’re on by opening Control Center and checking that both Bluetooth and Wi-Fi are lit up in blue. If they’re not, tap the icons. Low Watch Battery: If your watch’s battery is very low, it may not be able to pair. Put it on the watch charger for an hour or so and try again. iPhone Needs an OS Update: If your iPhone’s OS is out of date, it might have trouble pairing with a watch running a newer version of the OS. In that case, check for and install the iPhone operating system update and try pairing again.