Time magazine has conducted a study of 50 healthy adults up to an electrocardiogram (EKG) in order to test the accuracy of the Apple Watch’s haeart rate monitor.
The tested the Apple Watch against the Fitbit Charge HR, Mio Alpha and Basis Peak.
Their finding – devices using a chest strap were the most accurate (99%) with the Apple Watch cowing in second at 90%. The other devices into the low 80s acording to Dr. Gordon Blackburn, one of the study’s authors and director of cardiac rehabilitation at Cleveland Clinic.
You can read the full report here.