We suggest your HIMAMA monitor to be placed on your left underarm because it is closest to your heart. It does not matter if you are right or left handed as long as your heart is not inverted in your body.
Our monitor captures your sleep patterns, your heart rate and your real core body temperature, with this will get reliable BBT(Basal Body Temperature) data. The APP will show your BBT and your sleep pattern. It will not show your heart rate because it is meant to be used while you sleep and not while you are awake.