The watchOS 8 update, which is available to install right now for Apple Watch Series 3 and later, brings some cool new features that make your old Apple Watch feel instantly upgraded.
You set this new portrait watch face just like you do any other, from the Face Gallery tab in the Apple Watch app on your iPhone.
You’ve now got more control over the different HomeKit devices that are connected across Apple’s smart home platform, and you can even look at the feeds from compatible smart video cameras right on the watch without turning to your iPhone.
With watchOS 8 installed, Apple Watches are able to track respiratory rate (the number of breaths per minute) while you sleep, along with other data like heart rate.Dig into your sleep data on the Apple Watch or check it through the Health app on your connected iPhone to see the measurements that have been recorded over time.