The FDA today announced that it has qualified the Apple Watch AFib ( Atrial Fibrillation) history feature as an MDDT (Medical Device Development Tools). Apple’s Afib history feature becomes the first digital health technology qualified under MDDT to provide a non-invasive way to check estimates of AFib burden. The Afib History feature analyzes pulse rate data collected by the Apple Watch photoplethysmography (PPG) sensor to identify episodes of irregular heart rhythms consistent with AFib and pr...