Apple Watch Series 6 blood oxygen monitoring: how does it work and how to use it?

Okay, the new Apple Watch Series 6 comes packed with impressively-sounding health and wellness features. Among them is : the blood oxygen monitoring feature. It will show you the level of oxygen in your blood, which is tied to your overall health and wellness. The data is retrieved in the Blood Oxygen app, while periodic background measurements can be visualized in the Health app.

What is blood oxygen measurement? Do I need it on my Apple Watch Series 6?

Generally, blood oxygen levels represent your general wellness, meaning how ...