No charging No charging

Unlike smartphones and smartwatches, K Ring never needs charging, so you'll always be able to pay

No pairing No pairing

K Ring works all by itself, so you don't need to pair it with a smartphone to make a payment

Scratch resistant Scratch resistant

Engineered from zirconia ceramic, K Ring’s outer shell is hypoallergenic and almost as scratch-resistant as diamond

Waterproof Waterproof

K Ring’s electronics are sealed with a waterproof hypoallergenic resin, and it's just as happy in the sea as it is in the shower

Wear your wallet

Wherever you're going this summer, K Ring is the ultimate travelling companion.

Whether you're exploring in the city or relaxing on the beach, you'll always have money on hand with K Ring ... and you can leave your cards and cash safely behind.

K Ring is welcomed anywhere that accepts Mastercard contactless payments, which is almost 6 million retail locations worldwide – just look out for the contactless payment symbol below.

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Always competitive

K Ring is one of the best ways to spend abroad when compared with the leading dedicated currency cards. We don't charge commission on foreign transactions, converting them using Mastercard's exchange rate, with a 3% bank fee - so there's no need to play the odds and lock in your exchange rate ahead of time.

Foreign transactions are all detailed on your statement, showing the original transaction value, the exchange rate and the bank fee, making it easy for you to see exactly what you're spending abroad.

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Always easy

Making a payment with K Ring couldn’t be easier. Just move your hand towards the contactless card reader and hold it there until you see the green light or hear the beep. Watch the video below to see just how easy it is.

Always secure

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.

Don't forget to request your PIN before you travel; for extra security, you may be asked to enter it for higher-value transactions abroad.

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Features and benefits

  • Make contactless payments up to £100 (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, or via mobile app
  • 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

Purchase price


Monthly fee


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).

Always looking good

K Ring is available in a wide range of sizes and colour combinations.

And with its lustrous black or white exterior, K Ring will complement any outfit in your suitcase, whether you're dressed up for a night on the town or dressed down for a day by the pool.

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