Notice to change the Apple Watch to the new iPhone

　The season of increasing rumors of a new iPhone is also the season to start thinking about changing models. However, if you are using Apple Watch, you need to prepare for the model change of iPhone.

　There are two things to do. Delete mobile Suica and unpair.

　First, if you are using a mobile Suica, be sure to remove it from the Apple Watch. After deletion, after pairing with the new iPhone, you can restore it in iPhone's Wallet and add it to Apple Watch again.

　Next, unpair the iPhone and Apple Watch before changing the model. After unpairing, the Apple Watch is reset and returned to the factory state.

　"however, if you unpair first, a new Apple Watch backup is created in the iPhone backup data, so you can use it to restore Apple Watch."

　Back up the old iPhone to iCloud or iTunes, and then restore the new iPhone from the backup data, which means that when you re-pair the Apple Watch, you can restore it in the previous configuration. Therefore, it is also important to get as close to two as possible at this time.

　By the way, even if you forget to unpair and let go of the old iPhone, you can continue to use it as long as it is reset on the AppleWatch host. However, it is most reassuring to back up Apple Watch before backing up iPhone.

Remove Suica from Apple Watch

Click and start the Watch application for iPhone

Select the Suica to cancel from "Wallet and Apple Pay" in the Watch application

1 launch the Watch application on iPhone, then click "Wallet and Apple Pay" 2 to select the Suica you want to cancel from the list of cards on WATCH

Card deletion menu

The confirmation screen before deletion. When the balance is left, an alert will be displayed

3 after clicking "Delete Card" 4 to display the confirmation screen, click "Delete" again.

Unpairing with iPhone

Watch application for IPhone

Click the (I) tag in the selected Apple Watch

①Watch application for IPhoneを開き、解除したいApple Watchを選択します②（i）マークをタップします

Pairing delete menu

Confirmation screen of release

3 Click "cancel pairing with Apple Watch" 4 Click cancel again on the confirmation screen

Selection screen of mobile communication plan

Apple ID password input screen

Unpairing the screen

5 if Apple Watch is a cellular model, please choose to retain or delete mobile communication plan 6 enter Apple ID password 7 to start unpairing Apple Watch

　If you use the cellular model of Apple Watch Series 3, you will be asked whether to delete the mobile communication plan. Choose to retain or delete according to the purpose.

This article was validated by Apple Watch Series 3 cellular model (watchOS 4.3.2) and iPhone X (iOS 11.4.1).