https://wccftech.com/download-watchos-8-final-for-apple-watch-series-6-5-4-se-3/

watchOS 8 final update is now available for download. Compatible Apple Watch Series 6, 5 4, 3 and SE devices will see the update over the air.

If you've been waiting for watchOS 8 to arrive, then today is a very exciting day for you as the full and final version of the update is now available for everyone around the globe with a compatible Apple Watch.