Turn On Off Heart Rate Monitor
Mostaccurateandeasy-to-useheartrateapp-UsedinheartresearchatUCSF!-Getyourheartrateinlessthan10seconds-Checkyourstresslevels,Interestedincasuallytrackingyourheartrate?Tryoneoftheseapps,whichuseyoursmartphone'scamera.,WearHeartRategivesaninstanthea...。參考影片的文章的如下:

