Updated Aug.15 with more details of the update and how it will work.

The change doesn’t affect previously sold models with the original version of the feature or units bought outside the U.S.

The feature was removed on select smartwatches due to a patent-infringement lawsuit, but Apple has “redesigned” it.

Apple today announced that blood oxygen monitoring will return to Apple Watch models in the United States via a software ...

Apple’s iOS 18.6.1 brings health tracking, performance boosts, and more. Learn why this update is essential for your device.

OS 18.6.1 restores blood oxygen monitoring for Apple Watch Series 9, 10, and Ultra 2 users. Discover the update’s key ...

After almost two years, Apple announced it's bringing back the blood oxygen functionality to Apple Watch Series 9 and newer ...

The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's been MIA for more than a ...

The blog post reads, "Following this update, sensor data from the Blood Oxygen app on Apple Watch will be measured and ...

Apple just rolled out a redesigned Blood Oxygen feature to specific models, following a recent victory in a legal dispute.

The blood oxygen level measurement is coming back to the Apple Watch Series 9, 10, and the Ultra 2, over a year after Apple ...

Apple finally reintroduced the Blood Oxygen feature for Apple Watch models in the U.S. this week - here's how to use the app.