Apple Watch Series 12 Reads Your Heart Every Five Seconds: What Apple Publishes About That Data

Apple says the Apple Watch Series 12 “measures heart rate every five seconds, all day long”, with 60x more frequent background heart rate readings and 24x more frequent HRV readings than Series 11. What Apple publishes about the handling of all that data runs to two sentences: health and fitness data in the Health app, other than your Medical ID,...