# NFC Rings — NTAG213 Wearable Smart Rings URL: https://proudtek.com/products/nfc-ring/ Source URL: https://proudtek.com/products/nfc-ring/ Generated: 2026-03-16T01:42:30.697Z Kind: collection Publisher: Proud Tek Co., Limited Author: Proud Tek Co., Limited Credentials: ISO 9001:2015, ISO 14001:2015, RoHS Compliant, CE Marking, REACH Compliant Image: https://proudtek.com/blog-images/smart-ring.jpg Image Alt: Black epoxy-sealed NFC smart ring with embedded NTAG213 chip on a wooden surface ## Description A passive NTAG213 ring: no battery, no charging, a tap gesture. Sealed in water-resistant epoxy, sized to fit, and ready for door access, gym check-in... ## Summary - A passive NTAG213 ring: no battery, no charging, a tap gesture. ## Selection Guide - Best for: NFC Rings — NTAG213 Wearable Smart Rings helps buyers compare related RFID and NFC options quickly. - Compare first: Compare NFC Rings — NTAG213 Wearable Smart Rings by protocol, material, environment fit and deployment workflow. - What to send: Share the target use case, preferred chip or protocol, quantity, customization need and sample expectations for NFC Rings — NTAG213 Wearable Smart Rings. ## FAQ - Q: Does an NFC ring work with iPhone and Android? A: Yes for reading: NTAG213 is an NFC Forum Type 2 tag, and both Android and iPhone (iPhone XS and newer) read it natively - iPhone background-tap opens the URL or profile payload. For door readers, compatibility depends on your reader's configuration, so send us the reader model before ordering. - Q: Is the ring waterproof? A: The epoxy seal is water-resistant for daily life - handwashing, rain, showers. It is not dive-rated. If your use case involves sustained submersion (swimming programs, pools), tell us and we will specify a suitable construction explicitly rather than overstate this one. - Q: How much data fits on the ring? A: 144 bytes of usable NDEF memory - a URL, a vCard, a review-link payload or a short command. It is not a data vault; it is a trigger. - Q: What is the MOQ and can we get our logo engraved? A: MOQ 500 pieces across your size mix. Laser engraving of your logo is available, and we can pre-write the NDEF payload so the rings arrive tap-ready. ## Machine Routes - JSON: https://proudtek.com/machine/products/nfc-ring.json - Text: https://proudtek.com/machine/products/nfc-ring.txt