PubMed study published
According to a new observational study published in PubMed, the Apple Watch’s heart rate monitoring function is equally accurate when worn on the wrist as when worn on the shoulder, as shown in the photo.
Apple Watch uses an optical heart rate sensor to measure vital signs. It is based on photoplethysmography (PPG) technology, which uses LEDs to illuminate human skin and then uses photodiodes to measure changes in reflected light intensity caused by blood flow.
Apple Watch perfectly records heart rate even on the shoulder
Agreement between shoulder and wrist-worn measurements was good, meaning the shoulder is a viable alternative for the Apple Watch should the need arise.
It was previously reported that Apple released the updated watchOS 10.1 software platform for its Apple Watch smartwatch at the end of October. After the release, numerous user complaints began to appear online about excessive battery consumption and too rapid discharge.
