Samsung has reportedly certified a new battery with the group SGS Fimko, listed as intended for what looks like 2 variants of the same upcoming smartwatch. Their model numbers have become linked to the next-gen Galaxy Watch Active in earlier leaks. This latest one suggests that this model will get an upgrade in these terms, albeit not much of one.
https://www.notebookcheck.net/Samsung-Galaxy-Watch-Active-4-battery-specs-emerge-in-new-leaks.543875.0.html