Were they available back then!Should have bought Duracell.
Correlation is a good word. I'm finding that the watch is reporting pretty accurately how tired I am feeling at any given point. I'm warming to it in honesty and beginning to find it useful as a monitoring device. I doubt I'll ever use it solely to decide on whether to undertake an activity or not but the info is undoubtedly helpful. Ymmv
Wtf is body battery?!!
Thank you for asking. I'm just nodding as if I knew what they were talking about.
looking back I can see them starting to change a couple of days before I became symptomatic.