What does NFC stand for?
NFC stands for Near Field Communication. It's a short-range wireless communication standard that allows devices to exchange data when held within about 4 centimeters of each other.
The origin of NFC
NFC was developed as a joint initiative between Philips and Sony and was standardized in 2004 by the NFC Forum — a consortium of companies that still governs the specification today. It's built on earlier RFID technology but optimized for very short range and two-way communication between devices. The 13.56 MHz frequency it uses was chosen because it passes through most materials without interference and doesn't require line-of-sight contact.
Where you already use NFC without realizing it
If you've tapped a credit card to pay at a checkout terminal, used a transit card to board a subway, or used Apple Pay or Google Pay on your phone, you've used NFC. It's also what powers hotel room key cards, office security badges, and inventory tracking tags in retail. Business cards are a newer use case riding on the same infrastructure that's been in your wallet for years.
Is NFC the same as RFID?
NFC is a subset of RFID. RFID covers a broad range of frequencies and distances. NFC specifically uses 13.56 MHz at very close range and supports two-way communication.
Is NFC the same as Bluetooth?
No. Bluetooth operates at longer ranges (up to 10+ meters) and requires pairing. NFC works at under 4 cm, requires no pairing, and is faster to initiate.
Is NFC the same as Wi-Fi?
No. Wi-Fi is a network protocol for data-intensive communication at longer distances. NFC is for exchanging small amounts of data (a URL, a contact) at close range.