Another fascinating kickstarter project has begun! This one incorporates NFC technology into a Ring. You can do really cool things like installing an NFC enabled door lock to your home and opening your door only using your ring. There’s a video on the kickstarter page – take a look!
This ring uses the NTAG203 chip. All their software is open source to encourage anyone to invent even more uses for this concept. They are even providing information (a 9.5 STL file) to allow people to 3D print their own ring if they wish. Ring sizes come in the normal 7 to 15. Each ring has two NFC inlays: one Private, one public. Each inlay has the storage capacity of 144 bytes.