You can use Apple Pay wherever you see the contactless or Apple Pay symbol – just keep in mind some retailers may limit your purchase amount to £45. You can also use Apple Pay for travel, in the same way as your Barclaycard or Oyster card across the Transport for London (TfL) network. Simply touch your Apple Pay device against the reader as you enter and exit the gates.
iPad Air 2 and iPad mini 3 can also be used for Apple Pay in apps where you see Buy with Apple Pay or the Apple Pay symbols. If your device is running on iOS 11 you can set up Apple Pay in the Wallet app. If you're on an older iOS version, this can be done through the Passbook app.