Samsung's mobile payments system, Samsung Pay, is now live across the US. Using a built-in app as well as thier fingerprint sensor, the service allows users to pay for purchases via NFC and contactless payments terminal. The service is available only to Samsung Galaxy S6, S6 Edge, S6 Edge + and Note 5 devices on AT&T, Sprint, T-Mobile and US Cellular provided they're tied up with Visa, MasterCard or American Express accounts.
Source: Engadget