There are no manual pairing or device discovery steps or passwords to deal with. Perhaps most significantly, NFC doesn’t require you to jump through the kind of hoops that you may be used to with Bluetooth or Wi-Fi devices. In fact, NFC is an evolution of RFID that offers more advanced features and better security, but the two technologies still share a lot of things in common. The technology behind NFC is very similar to radio-frequency identification (RFID) commonly used in the security cards and keychain fobs that you likely already use to get into your office or gym. NFC, which is short for near-field communication, is a technology that allows devices like phones and smartwatches to exchange small bits of data with other devices and read NFC-equipped cards over relatively short distances. What is NFC, and how does it work? Joe Maring/Digital Trends
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