K Ring Spain (Pre-order)

RRP: €99.99
Now only: €59.99
You save: €40.00

K Ring is available in a wide range of sizes and colour combinations. Pre-order now and we’ll send you a free ring sizing kit, giving you plenty of time to choose your edition and work out your ring size. 

Available in UK Sizes M – Z3 (see the “Sizing” tab below for conversion).

  • Productshot ES

Pre-order your contactless payment ring – powered by Mastercard®. Scratch-resistant and waterproof. No charging and no smartphone pairing required.

Once activated, K Ring links to a virtual prepaid Mastercard*, providing:

  • Easy contactless payments up to €50 in Spain – no PIN required**
  • Global acceptance at over 40 million retail outlets
  • Security – switch K Ring off and on at any time

*Customers must meet age, residency and identification checks when applying for the virtual prepaid Mastercard account

** You may be required to enter your PIN if you use K Ring outside Spain for high-value contactless transactions (contactless limits vary by region)

K Ring is handmade in the UK using the finest materials and our own unique manufacturing techniques.

K Ring’s lustrous exterior is made from zirconia ceramic (ZrO2), a scratch-resistant technical ceramic that can’t be marked with anything short of a sapphire or a diamond. We chose zirconia ceramic for its aesthetic appeal (it feels as good as it looks!) along with the fact that it’s “invisible” to the electromagnetic pulses that pass between the ring’s chip and the contactless card reader during a transaction.

K Ring’s coloured interior band is made from hypoallergenic resin, selected for its resistance to damage, glassy finish and rich colour depth. The resin interior band is applied as a liquid, which seals the ring’s electronics to make the completed unit waterproof and dustproof.

UK, IE, AU, SA, NZ NL, IT, ES, CN US, CA, MX Inside diameter (mm) Inside circumference (mm)
M 12.50 16.71 52.5
N 13.75 17.12 53.8
P 16.25 17.93 56.3
R 19.00 18.75 58.9
S 20.25 19.15 60.2
T 21.50 19.56 61.4
U 22.75 10¼ 19.96 62.7
V 24.00 10¾ 20.37 64.0
X 26.50 11¾ 21.18 66.6
Y 27.75 12¼ 21.59 67.8
Z1 30.50 13¼ 22.4 70.4
Z3 32.25 14 23.01 72.3

Do not drop your K Ring!

As with any piece of jewellery or electronic equipment, your K Ring can be damaged if dropped onto a hard surface or if sufficient force is applied to it. Such mistreatment may result in surface cracks or damage to the electronic components inside.

Keep it away from diamonds!

The exterior surface of your ring is made from zirconia ceramic (ZrO2), which is extremely hard and scratch resistant – significantly more so even than titanium. However, do not bring it into contact with industrial abrasives, precious stones or diamond- or sapphire-tipped nail files – they will scratch it!

Steer clear of solvents!

Your K Ring is waterproof and can be safely cleaned with water-based household soaps and detergents. However, acetone (nail polish remover) and other solvent-based household chemicals may damage your ring’s interior band, so please remove it before using such chemicals.

Avoid electromagnetic fields!

Certain household electrical goods can generate EM fields strong enough to affect your ring’s payment chip. Avoid leaving your ring near electrical equipment (such as a radio alarm clock) for prolonged periods, or it may stop working.

Please note: only residents of Spain can pre-order K Ring.

We offer FREE shipping and aim to ship all pre-orders within 10 working days of size and edition selection, which will be available at myKring.com from 29/01/21. If you pre-order, we will email you to tell you when K Ring is live in your country and available for selection.

Depending on pre-order volume, we may have to make your ring to order, in which case it will be dispatched within 28 days of size and colour selection. We will keep you updated about your order.

All orders are dispatched in robust packaging that will fit through your letterbox, so you will not have to be at home to sign for it.

Pre-order cancellations

You may cancel your pre-order at any time before your ring is dispatched for a full refund. Please note that pre-order refunds may take up to 7 working days to reach your account.


We will replace a device or provide a refund if requested within 14 days of dispatch, once the device has been returned to us.
After this period we can only offer replacements or refunds for faulty products within warranty (see below); we cannot offer replacements or refunds for incorrectly purchased sizes or colours, nor for mistreated devices.


Your device is warranted by K Wearables Ltd for 2 years from date of purchase, covering electronic component, materials and manufacturing defects. Proof of purchase is required to validate your warranty, unless your device was a gift, in which case the original order number will be required. During the warranty period, a device will be repaired or replaced as soon as possible after examination if it proves to be defective under normal everyday use. In the case of replacement, we cannot guarantee that you will receive an identical device; if your device is unavailable, a device of equal value and/or similar style will be provided. Any replacement device will be warranted for the remainder of the original warranty.

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