ByteWizard,

RFID compatible with NFC antennas

Only the HF RFID stuff. There is also LF and UHF RFID. FZ has an LF RFID antenna.

“NFC tags are a subcategory of HF RFID technology. All NFC tags are HF RFID tags, but not all HF RFID tags are NFC tags. NFC operates in a very specific subset of the high-frequency range —13.56 MHz— and have very different use cases and implementation considerations from other RFID categories”
resourcelabel.com/…/comparing-different-types-of-…

Same thing for IRDA

IrDA isn’t the same as IR. There were some phones with an actual IR blaster built in but most were IrDA.

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