Samsung has two new wearables in store for us, the Galaxy Watch 4 and the Galaxy Watch ACtive 4. Both smartwatches are expected to be launched sometime in Q2, 2021, and will likely be the first Samsung devices to run WearOS instead of Tizen.
https://www.notebookcheck.net/Galaxy-Watch-4-and-Galaxy-Watch-Active-4-to-be-released-sometime-in-Q2-2021-Ice-Universe.526441.0.html