Main types of smart cards and how they work
RFID cards: The revolution in access control
Radio frequency identification (RFID) cards are probably the most widely used at medium and large events. Their operation is based on a microchip and a small antenna that transmits data to specific readers without the need for direct contact.
Why choose RFID for your event?
- They allow quick remote readings (up to several meters with active RFID)
- They do not require direct visual contact with the reader
- They are highly customizable with different access levels
- They facilitate real-time monitoring of participant flows
Ideal use cases: business conferences, festivals with different access areas, sporting events and professional congresses with several rooms.
NFC cards: proximity communication for enriched interactions
NFC (Near Field Communication) technology is a more specific evolution of RFID, allowing two-way communication over short distances. Its great advantage lies in its compatibility with most modern smartphones.
More on 5 reasons why NFC will thrive at future events.
Benefits:
- Easy and quick interaction between devices (just move closer)
- Allows secure transactions for payments within the event
- Facilitates the exchange of contact information between participants
- Compatible with most current smartphones
Typical applications: networking at B2B events, cashless payment systems at festivals, exchange of commercial information at trade fairs.
QR Codes: Accessibility and economy
Although they are not technically “cards”, QR codes are worth mentioning because of their popularity as an inexpensive alternative:
Why consider QR codes?
- Very cheap to implement
- Familiar to most users
- Can be sent digitally (e-tickets)
- No specialized hardware needed to read them
Ideal cases: small events with a limited budget, webinars linked to physical events or as a complement to other technologies.
Hybrid cards: the all-in-one solution
For complex events, hybrid cards combine several technologies (RFID + QR code + NFC chip) offering flexibility according to needs:
When are they indispensable?
- Events with various levels of access and services
- When different types of interaction are required
- To ensure compatibility with different reading systems
- At long-running events where versatility is essential.
