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Apple Develops Innovative Hydration Sensor for the Apple Watch

Apple has developed a first-of-its-kind hydration sensor designed for the Apple Watch, a company patent filing has revealed.
The patent, first spotted by Patently Apple, is titled “Hydration measurement with a watch” and was granted by the U.S. Patent and Trademark Office. “Traditional techniques for tracking hydration are generally invasive, expensive, or unreliable,” according to Apple. …

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