> Like, dear watch, how's my sex, birthday, size and weight gonna help you do your job? Come on. Every single one of those is an input for modelling calorie b

> Like, dear watch, how's my sex, birthday, size and weight gonna help you do your job? Come on. Every single one of those is an input for modelling calorie burn. If you don't want your watch to try and estimate that, that's fine - but it's pretty obvious why a fitness tracker would have those features.