Apple has started distributing watchOS 7.2 to Apple Watch Series smartwatches. The latest version of watchOS introduces Apple's smartwatches to Fitness+, although this is not available globally. Thankfully, there is another exciting new feature as of watchOS 7.2 that is available everywhere.
https://www.notebookcheck.net/The-Apple-Watch-gains-a-compelling-fitness-feature-with-watchOS-7-2.510418.0.html