I have the same problem. I bought apple watch 6 and it required to upgrade to ios14 so i did. After that iphone battery does not last 4 hr. I have to carry my charger all the time and i thought it was apple watch that drained my phone battery so i was about to return my apple watch. Also apple watch battery does not last enough even though it is new unboxed product. I hate to search around internet and not getting any helpful answer.
Attie
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