How to use Apple Pay on iPhone?

Your iPhone will use the default card in your Wallet to make purchases using Apple Pay. You need to add a debit or credit card to set up Apple Pay. If you have multiple cards, your default card will be used to make the payment. Sometimes, you may need to change your default card because your old card may not be valid anymore.

How do I use Apple Pay wallet & Apple Pay?

Tap Wallet & Apple Pay. Select the card you wish to use for Apple Pay purchases. If you frequently use different cards for different transactions, you can actually switch the default card that Apple Pay uses on the fly: Launch the Wallet app and simply touch and hold the card that you want to use, then drag it to the front of your card stack.

How do I change the default Apple Pay card?

On your Mac with Touch ID, go to System Settings (or System Preferences) > Wallet & Apple Pay. On your iPad or Vision Pro, go to Settings > Wallet & Apple Pay. Select a new default card. On your Mac with Touch ID, choose a card from the menu. On your iPad or Vision Pro, scroll down to Transaction Defaults, then tap Default Card and choose a card.