Always on hand
K Ring is the world's first contactless payment ring, powered by Mastercard and welcomed at over 40 million retail locations worldwide.
With K Ring, there's no need to handle cash or touch a PIN pad so you can leave your cards and phone safely in your pocket.
K Ring is free to load and free to use, and with the new contactless limit of £45, it's now even easier to safely pay in shops and on public transport – just look out for the contactless payment symbol.
Always looking good
Engineered from scratch-resistant zirconia ceramic, K Ring is available in a wide range of sizes and colour combinations.
Which will you choose?
Features and benefits
- Make contactless payments up to £45 (UK)*
- Accepted at over 40 million locations worldwide
- Secure – turn K Ring on and off
- Auto top-up facility
- Link multiple K Rings to the same account
- Manage your account easily online
- Powered by Mastercard, authorised by the FCA
*POS transactions with K Ring are subject to a maximum amount in line with local contactless transaction limits, therefore this figure may be lower in some countries. For transactions over a certain amount outside the UK, you may be asked to enter a PIN.
Fees and charges
Transaction fee (UK POS)
Transaction fee (non-UK POS)†
Load via bank transfer
Load via credit card
Load via debit card
† We use Mastercard's foreign exchange rate for our currency conversions + a 3% Currency Conversion Fee (Bank Fee).
K Ring is welcome anywhere that accepts Mastercard contactless payments, which is approx 40 million retail locations worldwide – just look out for the contactless payment symbol
You can’t make accidental payments with K Ring because it must be within 4cm of a contactless reader, with your hand in the correct position.
Powered by Mastercard, K Ring benefits from all of Mastercard’s security features – and for extra peace of mind, you can easily switch it off and on at any time.
Unlike smartphones and smartwatches, K Ring never needs charging, so you'll always be able to pay
K Ring works all by itself, so you don't need to pair it with a smartphone to make a payment
Engineered from zirconia ceramic, K Ring’s outer shell is hypoallergenic and almost as scratch-resistant as diamond
K Ring is waterproof and won't be harmed by soap or alcohol-based hand sanitiser – so keep washing those hands!
It was so easy!
Andrea, London, email
Getting used to clench fist - touch Oyster reader - open barrier - get on tube
Steve, London, Twitter
If I forget to wear my ring, my day gets a lot more inconvenient – especially on the Tube
Karen, London, Email
Used mine in Germany and the guy behind the counter made me show it to his co-workers
Raymond, Reading, Twitter
It worked perfectly. You’re not having it back it’s gorgeous!
Andrew, Hampshire, Twitter
No more searching the saddle bag at the coffee stop – I just pay with a fist bump!
Nigel, Hertfordshire, Email
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