Question about Samsung Galaxy XCover 4

I can only judge it with water ... since we work with water or flush pipes, the fingers and the device are often wet. I do not know how it behaves with salt water.

It is not possible to operate the display with (too much) water on it. However, the emergency mode can be set up (Settings/Advanced functions/Send emergency messages) and then an emergency message can be sent by pressing the on/off button 3 times, which even works completely under water.

Unfortunately, the unit is only freshwater-proof. Unfortunately, salt water would damage the electronics in the unit.