Which one is the smallest NFC tag that can be detected by an iPhone?
Hi @danielchen
it seems that it's this the smallest?
https://www.shopnfc.com/it/asset-nfc/316-micro-tag-nfc-icode-slix-6mm.html
According to ISO the PICC antenna coils can be categorized into class 1 to 6. The smallest size is class 6.
For circular, 25mm in diameter. For square, 25mm x 20mm
Regards
Daniel