Blog post by Marco Altini Quick update that HRV4Training, HRV4Biofeedback and Camera Heart Rate Variability currently support also all new iPhones from the 12 mini to the 12 Pro Max For iPhones with three cameras, the apps will use the corner camera, as shown below As usual, please double check our camera based measurement best practices, to make sure you'll collect high quality data on which meaningful analytics can be derived. Below you can also see two minutes of RR intervals data collected with the phone and a Polar chest strap, showing the usual agreement between the two, as reported in earlier validation studies: Here are the same RR intervals, but showing a bit better how they match: And finally the computed rMSSD (HRV value) for the two minutes: Enjoy! Useful links:
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