Hello guys, I just bought my AW four days ago, And I found out that my AW battery drop dramatically. For example, I took off my AW with 100% battery during the night, And when i woke up, the watch's battery only has 40% left. So, I went to apple store, and they said my AW's battery is healthy. But then I found out that my AW usage time and standby time is almost equal. Does that mean there are some apps running in the background causing my AW's battery drain? What should I do???? PS, I have re-booted my AW and paired with my iphone already.