use near field communication (NFC), similar to Bluetooth, data transfer requires close proximity & offers greater security. This includes payments from your mobile phone such as Apple Pay on your iphone & Google Pay on android.
make it possible for businesses to authorize a credit card transaction without using a credit card reader and having to physically swipe or dip a card.
work much like a traditional credit card terminal and operate on Wi-Fi to accept credit card payments.
with stores and businesses that allow them to buy select products and services within closed ecosystems.
contactless payment allows users enter credit card information to make card-not-present purchases.