I've used and test Bragi dash pro HR sensor with iOS+Strava and Andriod+Google Fit. Both works fine, except Strava in andriod doesn't support Bragi dash pro HR sensor input. This is more of a softw...
I'm having the same issue as Brad H. It shows bragi as a saved sensor but it doesn't do anything to read heartrate for andriod phone. Strangely, I have no problem at all using dash pro with ios.