How to change the unit of measure of my activity tracker? May 21, 2016 08:26 Updated Please go to the Setting Menu / Settings and click Units to change the unit of measurement in Miles or Kilometers. Related articles How do I change unit of measurement? How ZeCircle calculates the number of steps done, the distance performed and the amount of Calories burnt ? How to check the memory status of my ZeFit³ ? How to view and reply SMS on my ZeWatch4/4HR? How to reset manually my ZeFit³ HR ?