NFC allows short-range wireless communication between devices like smartphones and tablets when they are touched or brought close together. It can be used for contactless transactions, exchanging data, and setting up connections to other technologies like WiFi. NFC builds on RFID to enable two-way communication and uses less power than other wireless standards. Common uses of NFC today include mobile payments, accessing transport systems, and exchanging contact information between devices. Improvements to security and adoption by more merchants are needed to fully realize the potential of NFC mobile payments.