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The Jawbone UP3 is the ultimate, stylish activity tracking device. With a built-in bio-impedance sensor, the UP3 can provide you with extensive health metrics like heart rate, respiration, and skin temperature. This data in addition to traditional metrics, like steps and sleep time, will allow you to better analyze your overall health so that you can continually improve. The UP3 is currently available for pre-order for $179.99.