Do I still need to connect to my phone via Bluetooth when using NumberSync?

[jeffreycpackard]

Hi there. I just purchased an LG Watch Sport which is currently connected via Bluetooth to my Samsung Galaxy S8 while also using Numbersync. Since my calls and texts are pushed to the watch via Numbersync, do I still need to be connected via Bluetooth? What are the pros/cons to leaving it connected? I imagine I would get better battery life if I was to disconnect Bluetooth and turn it off on my watch. Anyone have experience with this?

Also, has anyone figured out a way to keep this thing from changing watch faces!? Man, what an annoyance that is. Touch it the wrong way and you're either given the selection to change or you'll find its just randomly changed throughout the day.