Apple Pay is a digital wallet and a mobile payment service offered by Apple Inc. that can allow you to make payments in person, in iOS Apps and on the web.
Users can only make this payment service on the iPhone, Apple watch, iPad and Mac. With Apple pay you can go around without your credit card or debit card, purchase stuffs and still make other transactions at a contactless-capable point-of-sale terminal.
Apple pay is available in the United States, United Kingdom, Canada, Australia, Brazil, UAE, Russia, China, New Zealand, Singapore, Japan, Taiwan, and Hong Kong, as well as various other European nations.  Apple Pay supports most major credit cards or debit cards, including American Express, Visa, Mastercard and UnionPay etc.
List of Apple Devices That Can Use Apple Pay
•iPhone – The service does not work on all Apple devices. However, it’s compatible with iPhone XS / XS Max , iPhone XR , iPhone X , iPhone 8 / 8 Plus , iPhone 7 / 7 Plus , iPhone 6S / 6S Plus , iPhone 6 / 6 Plus and iPhone SE.
•Apple Watch – The service is compatible on all Apple Watches and Macs.
To pay at points of sale, users hold their authenticated Apple device to the point of sale system. iPhone users authenticate by holding their fingerprint to the phone’s Touch ID sensor or facial recognition via Face ID, whereas Apple Watch users authenticate by double clicking a button on the device. To pay in supported iOS apps, users choose Apple Pay as their payment method and authenticate with Touch ID. Users can add payment cards to the service in any of three ways: through their iTunes accounts, by taking a photo of the card, or by entering the card information manually.
Currently, the service is available in over 30 countries. Moreover, you can share with us below your experience using the Apple service pay.