Watch metric
Fitness Age
Usefulness
1/10
· Safe to ignore
Fitness Age Definition
An estimate of your biological age based on all the metrics about you your watch has access to.
For example if you have a superior VO2 Max, a really low resting heartrate and health BMI, your fitness age will likely be lower than your actual age.
When it helps
To get an idea of your general fitness compared to your age.
When it doesn't
As anything other than a bit of fun. It is VO2 max in a costume.
Fitness Age equivelants on Garmin
Garmin
Fitness Age