Well, given that 10.2 beta is under development, there will be, I assume, several iterations of beta before a release candidate is marked.It doesn’t. Im on 10.2 Apple Watch Ultra 1st gen and and I took it off the charger at 10:30am yesterday and I went Down to 22% today at 9:10am. I work from home so didn’t do anything that would use a lot of power and I don’t have always on - on. I can normally go 2-3 days before charging it