For
They can spot early warning signs and save lives.
Against
They are inaccurate and cannot replace doctors.
Anonymous excerpts, translated where noted.
“It's good to know that the Apple Watch makes these measurements too, to at least give a signal to those who have no idea that it might be wrong”
“Head to the emergency room and even the triage nurse was surprised to learn that it was the watch that reported the fibrillation”
“This is not a diagnosis nor does it say what the specific numbers are”
“The doctor said it is not useful for diagnosis, but it is an indicator for control and to investigate further”