watchOS 27.0.1 can be downloaded through the Settings app on the watch or the Apple Watch app on a connected iPhone. Software can only be installed when the Apple Watch is on the charger and has over 50 percent battery.
Apple's release notes say the update fixes bugs, including an issue that could cause the Apple Watch to restart unexpectedly.
Thursday September 17, 2026 1:34 am PDT by Tim Hardwick
Apple released watchOS 27 on September 14, bringing a new Audio Intelligence feature set to its latest Apple Watch models, but as a result, owners of previous models are set to lose out doubly in the process.
Apple Watch Series 12 and Ultra 4 models later this year will get Live Rewind, a feature that provides a transcript of any spoken audio that was picked up by the device in the last 15...
Monday September 14, 2026 10:03 am PDT by Juli Clover
Apple today released watchOS 27, the newest version of the operating system that runs on the Apple Watch. watchOS 27 is compatible with the Apple Watch Series 9 and later, the Apple Watch Ultra 2 and later, and the Apple Watch SE 3.
watchOS 27 can be downloaded for free on a compatible device through the Settings app on the watch.
The update introduces support for Siri AI, a more capable...
Thursday September 10, 2026 11:57 am PDT by Juli Clover
Some Apple Watch users who upgrade to the Series 12 or the Ultra 4 might temporarily lose access to hypertension notifications.
On the watchOS feature availability page, Apple says notifications might not be available on the Series 12 or Ultra 4 at launch because regulatory clearances are in process.
Hypertension Notifications may not be available on Apple Watch Series 12 or Ultra 4 in your ...
I had the issue again today. After finishing a 11k run through a rough cold 4 degree Celsius morning with listening to podcasts over my AirPods Pro 3 (no iPhone with me) my Ultra 4 rebooted after I stopped the workout. It tracked all the steps, calories and training minutes but lost the training, GPS. So in desperation I updated to 27.2 beta 2 at work. I’ll be training tomorrow morning again and hopefully the issue doesn’t occur again.
Unrelated, but I also noticed that sleep tracking does not work in watchOS 27 on my AWU4 or AWS10
Sleep tracking working just fine for me. As with any new watch - need about a week for temperature and the HRV stuff to show up as it sets a baseline with the new sensors.
Apple's first foldable iPhone, with a book-style design featuring a 5.4-inch outer display and a 7.6-inch inner display with a minimal crease down the middle.
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