The Apple Watch is filled with a whole host of different sensors to make tracking your health and fitness easier, and this patent hints at another that could come to future generations.
Back in 2021, a patent revealed Apple’s plans to add a hydration measurement to the Apple Watch, which could “measure levels of electrolytes in perspiration.” Adding hydration measurement would be an incredible health feature on Apple Watch, allowing users to know how dehydrated or hydrated they are during exercise.
