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 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 ? How to change the watch face on my ZeCircle2 ?