If we go back to Apple's annual conference three months ago, the official announcement that the Apple Watch Series 4 will have ECG capability will definitely attract attention to the product in the evenings. Today, this highly anticipated feature is finally available with the latest watchOS 5.1.2 system in the US. At the same time, the factory has added a reminder function to detect irregular heart rate for all Apple Watch models.
However, according to the US FDA, this ECG instrument on the Watch Series 4 can only be used to provide reference information for the user and its age threshold should not be less than 22 years. They also stressed that users should not take "medical measures" based on hours of readings. Users should always remember to go to a qualified professional doctor to inquire about the situation. It should be noted that there are some medical professionals who believe that possible error data on the Apple Watch can cause the user to travel unnecessarily. Apple's attitude is to re-launch the FDA's recommendation and not to look at Apple Watch Series 4 diagnostic equipment standards.