Venu 3S generating Bluetooth to turn on and off on my phone

I got the venu 3s and I started noticing that my Bluetooth headphones would disconnect when training. So when looking in to the phone the bluetooth turns on and off on the phone when another audio device is connected.  The issue solves when I unpair the watch.. I deleted and re paired the watch several times but the issue remains. 
Also running another test I noticed the issue also solves when I turn off the Call audio on the watch. Do I need to return this device?