Featuresr only for ios 80 android 44 with bluetooth 40 or above smartphoner accurate dynamic and static heart rate blood pressurer for your love sports pay attention to their own heart rate trajectory in real timer call remind the alarm clock remind drink lots of water remind social share and sedentary remindonly for android not for iosr sleep monitoring pay attention to quality of sleepr perfect design convenient to take alongr r noter before you use it you must download a