Apple finally releases watchOS 8.6 update to the public

watchOS 8.6 update is now available for Apple Watch. Yes, Apple has just released the watchOS 8.6 to the public. The latest incremental upgrade brings Support for the ECG app and irregular heart rhythm notifications in Mexico, minimal changes to the Apple Pay and Messages alongside the other enhancements. Read along to know more about the watchOS 8.6 update.

Apple is sowing the watchOS 8.6 to the eligible models with a 19T572 build number. The new software weighs around 231MB in download size. The newest build is available for all Apple Watch models running watchOS 8 iteration. As this is rolling out to the public, anyone can download it and access the new features. Apart from the watchOS 8.6, Apple kicks off iOS 15.5, iPadOS 15.5, tvOS 15.5, and macOS 12.4.

Moving to the changes, then the changelog of watchOS 8.6 reveals that the update brings ECG app support for Apple Watch Series 4 or later and Irregular heart rhythm notifications in Mexico. Here’s the complete changelog.

  • watchOS 8.6 includes new features, improvements, and bug fixes, including:
    • Support for the ECG app on Apple Watch Series 4 or later in Mexico
    • Support for irregular heart rhythm notifications in Mexico
    • For information on the security content of Apple software updates, please visit this website:

Apart from the changelog, then you can also expect these small changes in the watchOS 8.6 – a new name for Physical Apple Card – now known as Titanium card, Apple Cash option in Messages app instead of Apple Pay, and a few other minor changes. Now let’s take a look at the steps on how you can upgrade your Apple Watch to watchOS 8.6.

Install watchOS 8.6 update on Apple Watch

As I said earlier, make sure to update your iPhone to iOS 15.5, once your iPhone is running on the latest software, you can update your Apple Watch to the watchOS 8.6. Here are the steps you can follow to update your Apple Watch to the new version.

  1. At first, open the Apple Watch app on your iPhone.
  2. Tap on My Watch.
  3. Then click on General > Software Update > Download and Install.
  4. Enter the password for confirmation.
  5. Tap on Agree to the terms and conditions.
  6. Once done, tap on install.
  7. That’s it.

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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 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 his 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.

2 thoughts on “Apple finally releases watchOS 8.6 update to the public”

  1. On my series 3 watch, sometimes the update doesn’t take unless I unpair the watch, nuke it, set it up as new, then update the iOS, then restore from backup. This time I did not have to do any of that, I merely updated to 8.6. How is that possible on my series 3 watch? What is the size of the file to 8.6 so small that my Series 3 could handle it? Thank you in advance.


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