Apple has not discussed whether the feature’s removal was a hardware change on the Series 10 or if it was simply disabled via the software, like with the Series 9.

Apple has published a new clinical validation summary document that explains how its new sleep apnea detection feature works

As a result of a legal dispute that started in late 2023, the Apple Watch Series 10 is shipping without the ability to measure blood oxygen levels with a pulse oximeter. After removing the blood oxygen feature from the Series 9 and Ultra 2 in January 2024, Apple has yet to reach a desired outcome in its patent dispute with Masimo.

Apple is adding sleep apnea detection to the Apple Watch Series 10, Apple Watch Ultra 2, and the Apple Watch Series 9. Given that sleep apnea is

The embiggening of the Apple Watch is nothing new. The original Apple Watch measured 38mm and 42mm. The Series 4 bumped that up to 40mm and 44mm. The Series 7 made it 41mm and 45mm. Today, the Series 10 measures 42mm and 46mm. Normally, I rail against the trend toward larger watches, but the Series 10’s display is worth every millimeter.

Apple is set to announce a new Apple Watch lineup during the 'It's Glowtime' event on Sept 9; here's what you should look out for.

The Apple Watch Series 10 is missing a key health sensing feature that was introduced with the Series 6. Here's what's going on.The Latest Tech News, Delivered to Your Inbox

Those with a Series 9 or Ultra 2 can upgrade to watchOS 11 to get sleep apnea detection. It will also work on the Apple Watch Series 10 when it launches on Sept. 20.

AI isn't the only focus Apple has in its latest era. It's making strides in health, too. Here are the two health outcomes it's aiming to help with its newest features.

Apple Watch Series 9, Series 10, and Watch Ultra 2 have been approved by the FDA to carry out sleep apnea detection.