Why Is My Apple Watch Battery Not Lasting. An Apple Authorized Service Provider can replace the battery to restore full performance and capacity. If your watch wont turn on it may be because its unable to charge.

Your battery can still be used. To fix Apple Watch battery life problems your next step should be to re-pair. While thats to be expected there can be times when the battery feels like it is draining even faster than usual.
But try charging your Apple Watch.
In fact the strange thing would be if it remained the same or that it improved. Try a different Apple Watch Magnetic Charging Cable or USB-C Magnetic Fast Charging Cable and a different USB Power Adapter. Why my samsung watch wont turn on. One of the common problems a Samsung Galaxy Watch Active owner may encounter is the one were discussing.
