The Samsung Galaxy XCovers are a line of smartphone that clearly happily sacrifice performance and modern-day looks for ruggedness. It has not seen a refresh since 2017. Now, however, it appears that a phone called the XCover 4s has been certified by Bluetooth SIG.
https://www.notebookcheck.net/Samsung-s-Galaxy-XCover-series-allegedly-set-for-a-new-update-soon.422675.0.html