Samsung has donated another feature to the Galaxy Watch Active 2, its former flagship smartwatch. This time, the South Korean company has borrowed from the feature set of the new Galaxy Watch 3, which it released in August.
https://www.notebookcheck.net/Samsung-brings-one-of-the-best-features-of-the-Galaxy-Watch-3-to-the-Galaxy-Watch-Active-2.500556.0.html
One error with your article...Samsung did enable ECG monitoring in the Active 2.
ECG was enabled over a month ago