@dimitrios-kanellopoulos Thanks. Suunto 9 van work with different Fitness Levels but I cannot change it anymore. Changing it through the Android App could be a way to solve it. But an option to change is directly in the watch (similar to change my Max Heart Rate or weight) could be a solution to. I can see some of the bodymetics (Max Heart Rate, Age, weight and gender) in the app, but I cannot change them in the app. This is OK while I can change them in my watch. But, as you confirm, FL is not available in the app and has never been available and changeble in my watch.