From Rodrigo Silvestri on 2017/09/12 19:53:52 +0000
Hi. I bought a Mi Band 2 and I tried to enable its heart monitor, but I cannot seem to be able to use it together with Sonar. It would be great if the app offered a way to combine different sources for the measurements (sonar for breath rate, mi band for heart rate, and choose between sonar and mi band for sleep cycles, or even use both to improve accuracy). This would make Sleep as Android the most complete and cheapest sleep tracking system ever 
Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/31366168-combine-sonar-and-wearables-for-complete-monitorin