I've read the manual numerous times and my hr is still broadcasting to garmin connect on my android phone. battery life of the vivosmart 5 an unacceptable 2 days. i go to activities/heart rate. scroll to broadcast, there is a broadcast icon above the heart. tap heart and gives me a warning that it will drain battery. tap again and it says start broadcasting. i'm assuming broadcasting is off. yet on my smart phone is continually updated. so, is it broadcasting. or does broadcasting mean to other garmin devices like an edge bicycle computer and not a smart phone. my main concern is to improve battery life of the vivosmart 5.