NFC is a technology that is all about objects and devices talking to each other. It's a worldwide standard that offers a broad range of solutions as for example: secure login, 2factor authentication (2FA), bluetooth simple pairing, physical access, contactless payment, identification, product authentication, product information, loyalty & membership programs and lots of apps, smart functions and mobile services!
Almost any smartphone, any tablet, and soon any notebook or PC holds a Near Field Communication (NFC) reader/writer module.
We already have found over 195 NFC different phone models today! On this link you can compare NFC phones http://www.nfcworld.com/nfc-phones-list/.