What is the difference between NFC and MST?
Near Field Communication (NFC) allows two devices placed within a few inches of each other to exchange information. NFC payments require merchants to upgrade their old terminals to NFC-enabled payment terminals. Magnetic Secure Transmission (MST) sends a magnetic signal from a compatible device to the payment terminal’s card reader (to emulate swiping a physical payment card). MST payments do not require the merchant to upgrade the payment terminal, making Samsung Pay available for use at nearly all payment terminals with a card reader. Some payment terminals may require software updates. Samsung Pay uses both NFC and MST to send payment information to the terminal. The transaction is seamless, whether using NFC or MST, allowing for a better user experience. Both technologies are equally secure, using a unique digital card number in place of your actual payment card's number. Your information is kept private and secure, and only your bank and the card's payment network will have information on the transaction.
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