I can get mine to last 5-6 days depending on usage. The GPS function obviously drains it faster so if I’m going on bike rides multiple days in a row it’ll be about 4 days tops, but if I do stationary bike and weight lifting it’ll get 5 days easy, even going on GPS walks it usually doesn’t drain as bad as the bike tracking.
Also worth noting I don’t have any phone notifications on my watch because I just don’t need another device getting my attention. So I think that helps to extend my battery life.
Additionally, I disabled the Pulse Ox sensor by default as that thing drains juice so fast. My girlfriend had hers on 24/7 and was getting like maybe 2 days out of a full charge.
Why would anyone care what the ISPs think about how much work they have to do? We’re paying for it, so in what world is it not misleading to withhold information about charges?