I mean if you do nothing and are not active then it’s an idle watch which doesn’t use much battery.

I didn’t get an LTE watch as I could not envision a reason to not bring my phone with me whenever I go some where.

If you’re not active or you don’t go to the gym I would say you probably don’t have a good use for it if using it as an extension of your phone is a minus for you.

Island is nifty but both are negligible