An estimation of battery life has never been accurate, even when not using the watch it'll use "2 days" of battery in a day.
I know there's an option in the Fenix 6 to choose percent or estimations, and I know many have requested this since the Instinct came out.
Battery percent should be the primary indicator with the estimations being secondary and viewable in the menu.
Can anyone from Garmin comment on this?