watchOS 11.6.1 Restores Blood Oxygen Monitoring in the U.S.

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Today, Apple has released iOS 18.6.1 and watchOS 11.6.1 for iPhone and Apple Watch. The new software upgrade restores the Blood Oxygen Monitoring system in the United States.

Apple is pushing the new watchOS upgrade to the eligible watch models with the 22U90 build number. As it is a big upgrade, it weighs around 460MB in download size. Talking about the eligibility, you can try the Blood Oxygen-feature on Apple Watch Series 9, Apple Watch Series 10, and Apple Watch Ultra 2.

Blood Oxygen Monitoring is coming back to U.S. Apple Watch models due to a “recent U.S. Customs ruling.”

Apple

Apple was forced to disable the Blood Oxygen Monitoring feature in the U.S. to comply with a United States International Trade Commission (ITC) import ban. The ITC found that Apple’s technology used features already patented by Masimo Corp.

Apple implemented a new workaround, available on watchOS 11.6.1 and iOS 18.6.1. Once you update your iPhone to iOS 18.6.1 and Apple Watch to watchOS 11.6.1, the Blood Oxygen app will measure the sensor data on the watch, but calculate it on iPhone; you can check out the results in the Respiratory section in the Health app.

Here’s the complete changelog released with the watchOS 11.6.1 update.

  • This update provides a new Blood Oxygen experience for users in the United States with Apple Watch Series 9, Apple Watch Series 10, and Apple Watch Ultra 2. Measurements are calculated on iPhone and viewed in the Health app.

watchOS 11.6.1 Update

First things first, you need to update your iPhone to iOS 18.6.1, then you can proceed with installing the watchOS 11.6.1 update on your Apple Watch. Follow these steps to download the update.

  1. Open the Watch app on your iPhone.
  2. Tap General > Software Update.
  3. Simply select download and install watchOS 11.6.1 update.
  4. That’s it.

Make sure that your Apple Watch is charged at least 50% and connected to a WiFi network.

Now the update will download and transfer to your Apple Watch. And after the completion of the installation process, your watch will restart. Once all done, you can start using your Apple Watch.

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Haneet Singh

Haneet is the Founder and Editor-In-Chief of YTECHB. He has a huge passion for tinkering with latest smartphones, wearables, smart home devices, smart TVs, and more. As an avid Apple Ecosystem user, he loves customizing his iPhone and iPad to suit his needs. For tips, you can connect Haneet at haneetsingh@outlook.com In 2019, Haneet and the YTECHB team exclusively shared the wallpapers of iPhone 11 right before the launch event. In 2020, Haneet alongside his team members shared exclusive renders and official photos of two Samsung Galaxy smartphones - the Galaxy M11, and Galaxy M21. Later, the YTECHB team leaks information about Motorola's feature phones and Razr 3. In the last few months, our team shared Galaxy S24 Ultra leaks and more. You may come across with our work getting mentioned in The Times of India, India Today, Hindustan Times, NDTV, TechRadar, Digital Trends, Yahoo News, GSMArena, Android Authority, Android Central, Android Headlines, SamMobile, XDA, 9to5Google, and many other publications. He works across news, updates, features, guides, and more. If YTECHB writes about it, you can expect him to be involved in some way.

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