You’ll learn about measuring blood oxygen saturation (SpO2), how to take and view readings, and which Apple Watch models still support the app. However, those who purchased the two latest Apple ...

Heart health is an important facet of any wellness plan. For Apple Watch owners, there are a number of built in features to ...

Apple also harnesses the heart rate sensor to track blood oxygen and heart rate ... Again, this can be viewed in the Apple Watch Sleep app on the device itself. Use the Crown to scroll down ...

As a result, Apple Watch models with blood oxygen features were once again halted ... Users can even use Siri to access data from the Health app for health and fitness queries.

One of the downsides to the Apple Watch Ultra 2, however, is that the blood oxygen sensor no longer works on that model. That’s due to the ongoing patent dispute between Apple and Masimo.