Water Resistant question (manual contradicts itself.)

hi everyone,

recently got the Fenix 5X. Just a quick one regarding the water Resistance on it. Now obviously do not press buttons underwater, that’s just common knowledge. 

But it is it okay to press when the watch is out of water? The reason I ask. The manual says do not operate the buttons when or if the watch is wet. But yet the Fenix 5X manual also says that it’s meant to be used for surface swimming and to use buttons to change the menus. Can anyone shed any light on this?

also, when the device is wet does water go under the button but not into the device? Does it have pressed in buttons?

thanks