Ο/H Phone Arena News έγραψε:

There are plenty of gadgets out there that measure your heart rate now - from the one-off pulse readers on phones like the Galaxy S7, to wearables that constantly follow your heartbeats. Their accuracy, however, is not created equal. It seems that measurements vary widely, according to Dr. Gordon Blackburn, a director of cardiac rehab at the Cleveland Clinic.

The team there pitted the Apple Watch against popular competitors like the Fitbit Charge HR, Mio Alpha and Basis Peak (yep, the hot one), and all of those against the gold standard of an electrocardiogram ...