The Galaxy XCover 4s is one of the latest in Samsung's line of rugged smartphones. It currently runs Android 9.0 (Pie). Now, however, devices with its model number have appeared on a benchmarking site running a major upgrade to this OS.
https://www.notebookcheck.net/The-Samsung-Galaxy-XCover-4s-could-be-headed-for-an-Android-10-update.452478.0.html