Hi,
I'm using Vivosmart HR and Samsung Note 4.
The problem appeared right after the app was updated to new version. App can see watch and synchronization is working. But it seems, that data is transferred only to a phone. The app shows latest data, but it does not show any history.
I tried to reinstall the app, reset device settings, but it didn't help. Do you have any idea, what could be the reason of such behavior? And how to fix that?