In our era of hyper-personalization, the old dictum to drink “eight glasses a day” of water just won’t cut it. Enter the Hydracoach, a computerized water bottle that calculates, monitors, and tracks your individualized water needs. (You only have to program the Hydracoach with your weight.) Created by inventors and outdoor enthusiasts Craig and Kelly Perkins after a devastating dehydration episode during a mountain climb, and produced in collaboration with Sportline, Inc., the Hydracoach, not only calculates how much water you need, but reminds you to drink it. Tempted to hydrate all at once? The Hydracoach advocates slow and steady intake over the course of an entire day, and tracks drinking habits (good ones, here) with a time and sip monitor. Bottoms up, dehydration down. —Eva Hagberg

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Get wet with Samsung’s weather- resistant sports camcorder SC-X210L.

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