We've seen at least one device that could be called a "smart ring" already: the wildly successful NFC Ring. But the Smarty Ring, currently accepting funding on Indiegogo, takes the idea about five steps further. It's a smartwatch, more or less, that's made into a ring form factor. Though it's not quite as capable as something like the Pebble, and nowhere near as powerful as the watches from Sony or Samsung, the idea is surprisingly attractive.

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