The Apple Watch Series 3 is allegedly heading for its product cycle end-of-life according to a well-known analyst. The third-generation smartwatch has served Apple well since its release in 2017 but is expected to be discontinued when the Apple Watch Series 8 and watchOS 9 become fully available.
https://www.notebookcheck.net/Apple-Watch-Series-3-looks-finally-set-for-retirement.609364.0.html