For the latest in sports-focused wearables, Gatorade is an unexpected entry but their new Gx Sweat Patch delivers important bio-data that will help you stay properly hydrated & recover faster after workouts. Apply the patch before a workout and it absorbs your sweat, displaying your hydration level on a color-changing zone on the patch. Scan the Gx patch with the dedicated app and get detailed info on fluid loss and sodium levels. The patches are sold in pairs.