Alongside iOS 14.6, Apple also rolled out the latest WatchOS 7.5, which includes bug fixes and several performance updates. The new WatchOS 7.5 has now an ECG feature for two new countries such as Malaysia and Peru.
Apple Watch Series 4 or later users are able to get this update. This update brings ECG features and notifications for irregular heart rhythms.
Additionally, the latest WatchOS version also has official support for Apple Card Family and Subscription in the Podcasts app.
To update to the latest WatchOS version, you must have Watch Series 4 or later. Simply visit the Settings app on Apple Watch, there you will get the Software Update notification.
While updating, also make ensure to have at least 50% battery and the Watch must be in close range to your iPhone.