How to Use Power Saving Mode on your Apple Watch During Workouts

“Apple Watch has a special way that you can conserve power during a walking or running workout by automatically disabling both its cellular capability (if any) and its heart-rate sensor. This is especially useful for older devices that may no longer have amazing battery capacity, because nothing sucks more than having your Watch die halfway through a long hike. Believe me, I know; I’m still upset about the missed achievements from the day that happened to me.”

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