How to call from Noise Fit Halo 2? 

Turn on the watch. Go to Noise Buzz. You can make calls through dial pad, call log, favourite contacts. 

Note: Make sure that Bluetooth call is connected at all times for a seamless Bluetooth call experience. 

Make sure to add frequent/favourite contacts in the <app name> in order to access them on your watch. 

In the noise Fit Buzz, 

Go to contacts. Add up to 10 favourite contacts 

Note: If the Bluetooth call is connected, all phone calls will be displayed on the watch synchronously.