Apple Watch - how accurate is the heart rate sensor?

How accurate is the heart rate sensor on the Apple Watch ? Well, if you have ever asked yourself this question, then today I have an answer for you because in the attached image you have compared the watch Apple Lossless Audio CODEC (ALAC), with a dedicated sensor for measuring heartbeats. Mio Alpha is the medical device used to measure heartbeats, and in this comparison we note that it and Apple Watch they have exactly the same cleanliness when it comes to monitoring patients' hearts.

To be completely honest, I would not have expected the Apple Watch to be so accurate in monitoring the heartbeat, considering that it was not specifically designed for this, but reality says otherwise. The reality is that when Apple puts its mind to work to make a product that has certain functions, those functions are as well thought out and tested as possible.

Considering that some people could rely on these measurements in the absence of dedicated devices, Apple understood that the information provided by the Apple Watch must be as accurate as possible and this test proves that the product is reliable. The sensor for monitoring the heartbeat is placed on the back of the Apple Watch case, its proximity to the skin allowing it to provide the most accurate readings.

Although what we see seems incredible, Apple has been testing functions like this for several months, cthe American company creating special test laboratories in which dozens of people were constantly monitored. Based on the information obtained from these people, a good part being its employees, Apple managed to adjust its components in such a way as to provide the most accurate information for users.

While I wouldn't recommend anyone rely on the Apple Watch, or any other smartwatch, for heart rate readings, if you don't have another medical device handy or access to a doctor, it could it helps.