Apple E-Gift Card
Can an Apple electronic gift card be added to wallet or Apple pay?
iPhone XS
Redeem a gift card with your iPhone, iPad, or iPod touch. Find the 16-digit code on the back of the card. For some gift cards, ...
How to redeem your Apple Gift Card or App Store & iTunes ...
In the United States, when you redeem a gift card to your Apple Account balance, the balance might appear in Apple Wallet.
Learn more about using Apple Wallet