Anyone have any idea on how to stop the IOS notification push from running

Anyone have any idea on how to stop the IOS notification push from running on an X5 as this let’s any IOS device connect to my watch. I have my bluetooth off and and power saving mode on. I have gone through every app running + installed using settings search and have stopped all the ones that I can see that will connect to other devices but it’s still connecting. Is this not security issue? Love the watch but don’t like this