NFC unlike RFID requires active participation and thus the social realm is where most people are focusing it’s usefulness. NFC is opt-in technology which means devices won’t read passively.  The user must do some action to participate, pay or receive information.

NFC is opt-in technology which means devices won’t read passively.  The user must do some action to participate, pay or receive information.

RFID is opt-out technology which means it doesn’t require user permission or activation. RFID will be picked up automatically and read. A user must block or opt-out of scan to not participate.

NFC would be the reader to an RFID but needs to be in close range. RFID would be the emitter for an NFC to pick up but RFID need not be in visible range.