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The Ring can let you remotely control your smartphone by making finger gestures.
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The Ring from Logbar.
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The Sensoria smart sock.
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The AmpStrip from FitLinxx.
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The smart belt, called Belty, from Emiota.
Wearables expand to waistline, feet and fingers
5 Photos
One company says its "smart belt" can track a wearer's health
