Live heart rate in Garmin iPhone app?

Hello all,

I am considering a Garmin smart watch like Vivoactive to replace Fitbit charge 2. My question: can I use the Garmin iOS connect app to monitor my HR that is recorded by the Vivosmart watch? I mean I want to use my iPhone to monitor the HR recorded by the watch, continuously, real time, like on the watch display itself.

I like working out on stepper and treadmill so I can lay my iPhone in front of me and see my HR and other workout stats like Workout duration. My Fitbit charge 2 can in fact send a continuous HR signal to my phone through BT to the iOS Fitbit app. 

thank you for your time. Any help is greatly appreciated!