Contactless card payments and mobile payments are the same under the hood. It's just ISO 14443 at the end of the day. Mobile payments are just Host-Card Emulation (HCE).

Some links: - https://developer.android.com/guide/topics/connectivity/nfc/... - https://xamoom.com/new-nfc-capabilities-for-all-iphones/

GP originally replied to my comment about contactless payments, not cards. In the US their adoption was synonymous.