13 of 17 people found the following review helpful
This review is from: Wahoo Blue HR Heart Rate Monitor for iPhone and Android (Sports)
Purchased a Blue HR so I could use it with an app on my iPhone to track my heart rate throughout my workouts.
It worked the first time I used it, and now it won't connect again. I have followed the directions to the letter including a warm up to try to "wake" it up. I have also tried changing the battery.
I suspect it's "asleep", but there is no way to tell or to wake it that I can see. An on/off switch could work wonders.
It's a piece of junk, Buy something else.