Echo needs to be in the foreground of your phone to establish a connection. Once connected, it can run in the background. 

How to connect

1. Open Echo on your phone (you do not need to do anything on your watch). Tap to start so it says, 'Waiting to connect'
   
2. Select the Bluetooth icon on the top right of the screen
   
3. Select and connect to 'ECHO HR'
   
4. Once connected, Echo on your phone will change from 'Waiting to connect' to displaying your heart rate bpm in real-time

This connection process applies to the bike, treadmill and max trainer.