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. Before you begin, go into your iPad Settings and make sure your Bluetooth is on
   

2. Open the Echelon iPad app and start a workout
   
3. Select the heart icon on-screen
   
4. Select 'ECHO HR (your phone's name)'
   

Additional info can be found on Echelon's support page.