Samsung has just started shipping the Galaxy Watch Ultra, its attempt to take on Apple and its Watch Ultra series. Like the Galaxy Buds3 Pro before it, it seems that a few issues are affecting some Galaxy Watch Ultra units at launch for one reason or another.https://www.notebookcheck.net/Samsung-Galaxy-Watch-Ultra-Early-adopters-complain-of-quality-control-issues-short-battery-life-and-software-bugs.867513.0.html
I don't know if it is all watches or whether the watch hasn't been updated, but my Galaxy watch ultra gets 3 days battery life and haven't noticed any software problems.