With the distances people are able to travel on foils etc
What are people using to communicate should the need arise whilst out foiling?
I purchased a "waterproof" bag from amazon but when I returned my old Samsung looked like a phone in a fish bowl

Upgraded to the iphone and whilst they say its water proof etc I don't want to risk it again
I am not overly keen to get wrapped up in how fast I went etc just looking for something I can call for help if needed
Although perhaps getting something which provides speed & details of runs etc is just another phase of foiling GAS

Anyway, what are people using please?