The Apple Watch has a heart rate monitor that uses a technology called photoplethysmography to obtain an accurate heart rate reading. (mobilesyrup.com)
Arterial stiffness was measured using pulse contour analysis based on photoplethysmography. (sciencedaily.com)
With a suite of LG health and fitness apps, users can also monitor their heart rate with the support of the embedded photoplethysmography (PPG) sensor. (ecoustics.com)