HealthFit on X: "You can customize the heart rate zones based on the MHR (Max. Heat. Rate.), the HRR (Heart Rate Reserve), the LTHR (Lactate Threshold Heart Rate) or explicit BPMs. #AppleWatch #
How To Change Heart Rate Zones on a Garmin Device
Calculate Your Maximum Heart Rate - Data Thursday - Run Fast Academy
Heart rate zones are different on watch and Garmin connect - Forerunner 945 - Running/Multisport - Garmin Forums