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What's the difference between contact and contactless cards?

Time :2018-01-23 13:00Click :
All smart cards contain embedded integrated circuits, which is a microchip inside the card that’s programmed to work with only a specific scanner. Contact smart cards require you to actually insert the card for identification purposes. Conversely, contactless smart cards, which are commonly known as RFID (radio frequency ID), only require you to be near the scanner for reading. 
contact smart card and contactless smart card
When you look at a contactless card, normally you cann't  see the antennae and the embedded chip, because they have been laminated inside the plastic card body. When you look at a contact card, normally you can see the embedded chip, because it has been embedded outside the plastic card body for the scanner to read and write.  
Both types work very well in organizations that demand higher security. The one that’s right for you depends on your needs.