New watch wont stay charged
My brand new Apple Watch 10.5 won’t keep a charge more than six or seven hours. My older versions lasted more than 24 hours.
Apple Watch Series 10, watchOS 11
It will take 24-48 hours for the new operating system to finish it house keeping, as well as resync things it wants from the iPhone. Power cycle the Apple Watch and your iPhone (at least once, but maybe once or twice a day until the Apple Watch battery consumption returns to normal. The MacObserver.com How To Fix WatchOS 10.3 Battery Drain Issue on Apple Watch https://www.macobserver.com/tips/how-to/fix-apple-watch-battery-drain-issue-after-watchos-10-3-update/ Also see: https://discussions.apple.com/docs/DOC-250007078 For some steps that are not in the MacObserver article. iPhone -> "Watch" app -> General -> Reset -> Reset Sync Data Again it may take a day or two for the rsync'ing of data to settle down.
Paired my new Series 10 Saturday, power cycled it Sunday, Power cycled it again Monday. It has been sipping power ever since. Yesterday it was at 50% when I went to bed. Charge it up, then did Sleep monitoring over night, and it was at 90% this morning.
Do the power cycling tricks.