Many people are using their smartphone or smartwatch to make payments. Kerv is another wearable device that helps you make payments everywhere you go. This is a contactless payment ring that lets you make payments without having to carry a wallet or smartphone. It is waterproof and scratch proof.
The ring has a NFC chip that lets you make payments in a secure fashion. You can also use it to access NFC-controlled locks. Kerv is made of lightweight, hypoallergenic materials. You can find it on Kickstarter.