This is the Gx Sweat Patch: an app connected tool that measures sweat rate, fluid loss, and sodium loss. It weighs only 1.25 ounces, so you can wear it around comfortably. These use hypoallergenic adhesive. They combine with your phone to let you know total amount of fluid loss, sweat rate over the course of an hour, and Sodium loss.
More gadgets like this ➡️ : here
This sweat patch works with the Gx iOS app. The app gives you hydration and nutrition recommendations after each workout.
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