In fact, NFC-SIM card is a mobile phone SIM card with NFC function. NFC is the abbreviation of Near Field Communication, that is, short-range wireless communication technology.
But we don't call it NFC-SIM card, we call it RF-SIM card. RF-SIM card is an intelligent calling card that can realize near-field communication. The patented technology is a full-service platform, which can replace wallets, keys and ID cards. Its biggest feature is that you don't need to change your mobile phone. The existing mobile phone will become an NFC-like mobile phone if it is replaced by a smart card, but the frequency used is 2.45G, not 13.56M, and the communication distance can be automatically adjusted at 1-500CM, which supports1000 m (data broadcasting) in one direction.
SIM card is used for normal mobile communication and authentication, and only for physical connection with mobile phone. Built-in software is used to manage VIP membership cards such as high-security RF-ID based on mifare logic, built-in e-credit electronic credit card and EMV electronic wallet. Use micro RF module to communicate with external equipment through built-in antenna.
Unicom has also launched RF-SIM card, but at present, it is only piloted in some areas, and it has not been widely used.
Unicom's RF-SIM card (pictured)