@debate507 I have the Oura ring and have had it for 2 years. I’ve been losing weight for 18 mos. 5’1”, 42 years old.
My calories burned per day according to the ring at 165 lbs was 2,020 cals, at 135-130 lbs it is 1,960 cals. 80 cal difference of ACTUAL burn.
TDEE calculator says 1,615 cals for 165 lbs at sedentary. And 1,452 cals for 135 lbs at sedentary. 163 cal difference of potential burn.
As you lose “weight” ideally you’re losing fat and gaining muscle. So yes, you do have to eat “less” in a way. But as you recomp your body, muscle burns more calories just existing than fat does.
I found I worked best cycling calories, ie one day 1,800 cals, next day 1,100, next day 1,300, so total calories for the week were met. But helped me stay “consistent” as I’m not the type that can do things the same daily.