A:AnswerNo, it does not have the sleep tracking feature but maybe there's an app you can download that will track it for you. Fitbit watches can track sleep patterns.
A:AnswerMy daughter has a iPhone 6 and she had connection problems also. Reason being I think is because you have to leave that app running in the background at all times. If you swipe all your apps away. It shuts down the connection to your watch. She had the same problem so we ended up taking it back. And buying a Apple watch series 3 for 50 more bucks.