What is K Ring?

What is K Ring?

K Ring (formerly known as Kerv Ring) is the world’s first Mastercard® contactless payment ring … and the first in an innovative range of next-generation wearable payment devices.


K Ring can be used to make a payment anywhere in the world that accepts standard contactless credit, debit and prepaid card payments.


K Ring uses similar technology to that which is in the contactless payment cards already in your wallet or purse, but we’ve obviously had to make an innovative leap or two to make that technology work as an attractive and comfortable wearable device.


In addition to making payments with a single gesture, K Ring also facilitates one-touch access to public transport networks.

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    • Who makes K Ring?

      K Ring is made in the UK by K Wearables Ltd. The K Wearables Prepaid Mastercard® programme is operated by K Wearables Ltd, Orion House, Bessemer Road, Welwyn Garden City, AL7 1HH. Company number 10093360; VAT registration number 258044208. The K ...

    • Is my K Ring waterproof?

      Yes! The inner band of K Ring is made from a hard inert resin which seals the electronics and renders it completely waterproof. You can wash your hands as much as you like while wearing your K Ring, and it won't be harmed by hand sanitiser, either.

    • Will my K Ring expire?

      Yes, your K Ring will expire – much like a credit or debit card – 4 years after the date of issue. We will alert you 30 days before your K Ring expires to give you plenty of time to order a replacement.

    • How do I buy a K Ring?

      To buy a K Ring, ABN AMRO customers should visit: www.mykring.com/en/bank/abn-amro

    • How do I buy a K Ring?

      To buy a K Ring, customers of KBC, KBC Brussels and CBC should visit www.mykring.com/kbc