User Profile
From your Garmin Connect device menu, select User Profile.
VO2 Max: Allows you to see your current VO2 max. and when it was last updated (Getting Your VO2 Max. Estimate).
Fitness Age: Allows you to see your current fitness age (Viewing Your Fitness Age).
Display Name: Sets the display name used in your morning report and alerts (Morning Report).
Gender: Sets your sex (Gender Settings).
Birth Date: Set your birth date.
Height: Sets your height.
Weight: Sets your weight.
Wrist: Allows you to select which wrist you wear your watch on.
Heart Rate Zones: Allows you to estimate your maximum heart rate and determine custom heart rate zones (About Heart Rate Zones).
When you first set up the watch, you must choose a sex. Most fitness and training algorithms are binary. For the most accurate results, Garmin recommends selecting your sex assigned at birth. After the initial setup, you can customize the profile settings in your Garmin Connect account.
Profile & Privacy: Enables you to customize the data on your public profile.
User Settings: Sets your sex. If you select Not Specified, the algorithms that require a binary input will use the sex you specified when you first set up the watch.