Apple Pay is one of the most convenient options to make purchases on iPhone and Apple Watch. You can add as many as virtual cards to your Apple Pay. Your first card will be default one but you can change it easily by following below mentioned steps.
To change the default Apple Pay payment method on Apple Watch:
Launch the Apple Watch app on your iOS device.
Go down and then tap on Wallet & Apple Pay.
Now, tap on Default Card located under Transaction Defaults.
Next, choose your card.
Launch the Settings app and then tap on Wallet & Apple Pay.
Now, tap on Default Card and choose the new card you want to make default one.
Moreover, you can also change your default payment method in the iOS Wallet.
Go to the Wallet app on your iOS device.
Now, touch and hold a card until it floats and then drag it to the front of the other cards.
That's all friends!!
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