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Smart earrings can monitor your health even when you're in a dress

Sure, there are high-tech bracelets out there that can show you texts and reminders, but you're more of an earrings gal anyway, and you like fitness bands better than smartwatches. Ear-o-Smart is a pair of smart earrings that can take the place of both health bands and heart-rate-monitoring earbuds like LG's and SMS Audio's. These accessories have the technology to monitor not only your heart rate, but also calories burned and activity levels by shining an LED to your flesh and measuring the light reflected by your blood. They then transmit bursts of data via Bluetooth to an iPhone or an Android smartphone.

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engadget.com
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