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 • purchased this product011purchased this product 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