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The company has recently made a push into the activity-tracking space — competing with Fitbit, Jawbone, Garmin, and others — with two devices: the Activité, a step-and-sleep tracker that looks like a regular mechanical watch, and the Pulse O2, a fitness monitor that can also check a user’s heart rate. I thought that I would find the activity trackers indispensable. But within a month I discovered that I didn’t have a particularly strong commitment to wanting to keep track of my daily activity levels, and I stopped using them. To my surprise in the end the product I now use most regularly is the one I was most hesitant to try: the Aura sleep-tracking system. The Aura is a futuristic-looking alarm clock-like device that connects to Wi-Fi and includes a sensitive, wire-connected monitoring pad that goes underneath a user’s mattress. The system keeps track of heart rate, time spent in REM sleep and deep sleep (based, in part, on body motion and breathing cycle), and room temperature (a recent update allows it to connect with Nest smart thermostats to adjust temperature for maximum sleep comfort).
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