NFC tag vs RFID tag

About the NFC tag vs RFID tag, there are significant differences between NFC tags and RFID tags in many aspects.

First of all, from the perspective of basic principles and application scenarios, NFC technology is based on radio frequency identification (RFID) technology and works at a frequency of 13.56 MHz, allowing two devices to communicate with each other at a very short distance, usually a few centimeters. NFC devices can act as both readers and tags, making data transmission very convenient. NFC technology is widely used in mobile payment, smart door locks, smart homes, public transportation and other fields. RFID technology is an automatic identification technology that does not require direct contact with the target. It was first used in the 1980s and was initially limited to maritime transportation, traffic information systems and other special applications. It has now been widely used.

Secondly, from the perspectives of correspondence, frequency difference, communication distance, one-way and two-way communication, and data reading and writing, the differences between NFC and RFID are as follows:
1.Correspondence:
The reader and tag in RFID can be in a one-to-many relationship, while NFC is a one-to-one relationship.
2.Frequency difference:
RFID has multiple operating frequencies, including low frequency, high frequency, and ultra-high frequency, while NFC only works in the single high frequency spectrum of 13.56 MHz.
3.Communication distance:
NFC’s communication distance is much shorter than RFID’s, which can reach tens of meters, while NFC is only within 10 centimeters.
4.Unidirectional and bidirectional communication:
RFID usually only enables unidirectional communication (from tags to readers), while NFC enables bidirectional communication.
5.Data reading and writing:
Using an RFID reader, data can be written to tags. NFC data can be read and written from tags, and can also be locked to read-only.

In general, about NFC tag vs RFID tag, although NFC tags and RFID tags are both based on radio frequency identification technology, they have different focuses on applications, working principles, and characteristics. NFC focuses more on short-range, one-to-one, two-way communication and data exchange, while RFID has a wider range of frequency options, communication distance, and one-to-many communication capabilities. The choice of which technology to use depends mainly on the specific application scenario and requirements.

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