Open the Garmin Connect app.
Access the menu by selecting More (bottom right).
Select Settings.
Select User Settings.
Select Activity Class.
To enable Athlete Mode change the value to 8-10.
To disable Athlete Mode change the value to 1-7.
The value you select has no bearing on your weight metrics other than being on either side of the value of 8. Lower than 8, athlete mode is off; 8 or higher and it is on.
Save the settings by selecting Save or backing out of the mobile app settings.
Step on your scale and confirm it connects to both your Wi-Fi network and your Garmin Connect account.
Once this is complete the activity class settings will be set on your scale.
Select your product to confirm this information applies to you
Body Fat Percentage Is Too Low on the Index Smart Scale Series
If the body fat reading on the scale appears too low based on your known body fat or is reporting a value lower than it previously had been, the issue is likely that the scale is in Athlete Mode. Athlete Mode is a setting on the scale that enables a different algorithm for the body metric measurements the scale provides. This mode should be enabled for users that are very athletic and very lean where their body fat is below the normal average of a human being.
To change this setting on the Index™ Smart Scale series, you need to access Garmin Connect™ through either the mobile app on your phone or with Garmin Connect on the web.
To Enable or Disable Athlete Mode
Sign into your Garmin Connect account online.
Select Profile & Account (top right).
Select Account Settings.
Select User Settings.
Select Activity Class.
To enable Athlete Mode change the value to 8-10.
To disable Athlete Mode change the value to 1-7.
The value you select has no bearing on your weight metrics other than being on either side of the value of 8. Lower than 8, athlete mode is off; 8 or higher and it is on.
Select Save at the bottom of the page.
Step on your scale and confirm it connects to both your Wi-Fi network and your Garmin Connect account.
Once this is complete the activity class settings will be set on your scale.