I have owned my VIvoactive 4s for just 9 months and have loved loved it!! Today i took it to the pool to count my laps while I lap swam. My watch vibrated randomly and asked me to set up garming coaching. I just ignored and continued to swim, It then vibrated under water and the screen lite up like an achievement or something but being mid stroke in water over my head i didn't stop to see fully. Once I reached the wall I looked at my watch and it was black. No screen visable. I swiped it, tried to see if i could turn it on amd nothing. So I hopped out of the pool and left. On my way home I pushed the button to turn it on and the green triangle was there and then the screen came back like normal. I have swam with it several time before and have never ever had an issue with my watch. Of course now i am scared to use it in the water being afraid that maybe water got in it some how. Has anyone else had this happen? Will Garmin replace it? I am calling the centre to get advice when they open. I use this watch all the time and only take it off to shower. Being it is not even a year old and not a cheap watch, I am worried. 
HELP need advice.
