PPG

By Dave Muoio 04:08 pm February 11, 2020
The accuracy of wearables employing photoplethysmography (PPG)-based heart rate sensors may vary significantly between specific devices and activity types, but these sensors’ performances do not appear to be significantly affected by the skin tone of the wearer, according to a new study published in NPJ Digital Medicine. The investigation, conducted by Duke University researchers among 53...
By Dave Muoio 03:43 pm September 24, 2019
Fitbit and Belgium-based FibriCheck announced today that device owners living in certain UK countries now have access to a smartwatch app that uses photoplethysmography (PPG) to detect heart rhythm irregularities such as atrial fibrillation. Available in Belgium, the UK, the Netherlands and Ireland, the CE-marked tool is similar to FibriCheck’s smartphone app in that it uses light and sensors to...