Although it may sound a bit technical, you’ve probably already used it, even without realising it. If you’re interested in understanding what NFC is and how it can make your life easier, here’s a simple explanation.

What is NFC?

NFC stands for Near Field Communication . It is a wireless technology that allows data transmission between devices that are in close proximity, typically within a few centimetres of each other. 

Unlike other wireless systems such as Bluetooth, NFC does not require a prior connection. You only need to bring the two devices close together for them to communicate. This simple and safe approach has led to its widespread adoption in many areas.

Brief history of NFC technology

NFC is derived from RFID (Radio Frequency Identification) technology, which has been used for decades to identify and track objects using radio waves. This technology evolved from that base, adding greater interaction and capabilities for use on mobile devices, cards and more. 

Since its development in the 2000s, NFC has become a global standard, used in multiple industries due to its versatility and security.

Most common NFC applications

Contactless payments

One of the most popular applications of this technology is contactless payment. By bringing your electronic device (mobile or smartwatch, for example) or a card close to the point of sale (POS) terminal, you can make a purchase without the need for cash or inserting your physical card.

Public transport cards

Many cities use NFC for their transport systems. With a card or enabled device, you can access buses, metro or trains with a simple gesture.

Identification and access

NFC is also used in digital keys to open doors, access offices or for access control at events. It’s practical and reduces the need for physical keys.

Sharing information

Some devices allow sharing of data, such as contacts or photos, by bringing them closer together. Although this function has lost popularity to other options, it is still useful in certain cases.

Use in smart devices

Smart watches and wristbands with contactless technology are perfect for payments or for immediate recording of physical activity data.

Are there varieties or types of NFC?

NFC technology has no “types” as such, but its applications can be classified according to purpose: 

• Reader mode: When an NFC device reads data from a tag or card (such as a transport ticket).
• Transmitter mode: When the device acts as a digital card or key (e.g. when paying with a mobile phone).
• Peer-to-peer mode: It allows two-way communication between two devices to share information.

Recommendations for safe NFC use

Although it is a fairly secure technology by design, it is important to be aware of some precautions: 

• Activate NFC only when you need it: This reduces the risk of unauthorised access.
• Set up security measures on your device: Use passwords, PINs or biometric recognition.
• Check payment terminals: Make sure they are trustworthy before using your device.

Why is NFC important?

Now that you know what NFC is, you can easily see that this technology is widely used. Its combination of simplicity, speed and security makes it ideal for many everyday applications. 

From paying in a shop to accessing your office or boarding a bus, near field communication technology continues to gain ground as a key tool in simplifying our everyday lives.