09-14-2020 12:14
09-14-2020 12:14
-Em 💛
09-15-2020 11:06
09-15-2020 11:06
Hello @SunsetRunner and welcome to the Help forums. The reason you must choose between male and female is that certain equations are sex based because of biological differences. The BMR calorie equations and the equations for the cardio fitness score (what Fitbit calls your VO2max estimate) are different for males and females.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.