Older style "Blink", "PayWave", "Express Pay", and others where you
wave the card or tap it on the machine
Have RFID that can go a foot or two.
The new EMV "Chip Cards" do actually have RFID but the range is only about half an inch.
For now, Chip cards only will work "contact only", by inserting in the machine but as soon as the vendors all upgrade to the "contact only" machine, they will all be urged to upgrade to the "Dual Interface" version where a EMV chip card (with it's really tiny RFID range) can be tapped as well.
