10 years ago
Coin Wants to Fix the Way We Pay — But Is It Really Broken?
A Coin is the same length and width as a standard credit card, and it’s nearly as narrow. But inside, you’ll find paper-thin circuitry that lets you spend money associated with all the cards that sit in your wallet today. With a nearly flat button, you can toggle among your many digital card signatures, and a tiny screen tells you which card the Coin is currently mimicking.
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http://www.wired.com
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