Michaelkoster891 year ago000Can I also use the heart rate monitor without smartwatches and only connect it to my i phone?Show in original language (German)dhoffman1 year ago+110 Helpful answerYes of course, Polar has its own app with which you can connect OH1 with Bluetooth and then display the heart rate in the app. OH1 is a great device...Show in original language (German)Comment