You’ve likely seen a coworker or your barista sporting some new jewelry lately. It’s not a wedding band — it’s a smart ring, and it’s tracking more bodily functions than you’d care to know about. A few years ago, smartwatches were all the rage, from the humble FitBit to the takeover of the Apple Watch. Now, we've shifted to smart rings. Are you itching to get your hands — er, fingers — on one? Select the one (or come back and click ‘em all!) you’re interested in and we’ll give you the lowdown.