Fitness wearable tracks hydration levels through skin

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This is part of a series of articles that looks at entrepreneurs hoping to get their ideas off the ground through crowdfunding. At the time of writing, each of these innovations is currently seeking funding.

We’ve covered many recent examples of fitness-tracking wearables offering a range of insight into user health, such as supplementary diet recommendations, and now LVL is enabling users to monitor their hydration levels throughout the day. LVL, from BSX Athletics, is worn on the wrist and works by shining a red light through the skin to measure the blood water level (using similar technology to that used in hospitals to measure blood oxygen). User hydration levels are then reported in simple graphics on the LVL watch-style face, with real-time data also uploaded to the LVL app via bluetooth. While focussing on…

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