NFC
Near Field Communication
or NFC, is a short-range high frequency wireless communication technology which enables the exchange of data between devices over about a 10 centimetre (around 4 inches) distance. The technology is a simple extension of the ISO/IEC 14443 proximity-card standard (contactless card, RFID) that combines the interface of a smartcard and a reader into a single device. NFC is primarily aimed at usage in mobile phones.
NNFC and Bluetooth are both short-range communication technologies which have recently been integrated into mobile phones. The significant advantage of NFC over Bluetooth is the shorter set-up time.
Instead of performing manual configurations to identify Bluetooth devices, the connection between two NFC devices is established at once (under a tenth of a second). To avoid the complicated configuration process, NFC can be used for the set-up of wireless technologies, such as Bluetooth.
The maximum data transfer rate of NFC (424 kbit/s) is slower than Bluetooth (2.1 Mbit/s) and with less than 20 cm, NFC also has a shorter range than Bluetooth. (max. 100 m range) In contrast to Bluetooth, NFC is compatible with existing RFID structures. NFC can also work when one of the devices is not powered by a battery (e.g. on a phone that may be turned off, a contactless smart credit card, a smart poster, etc.).