Hi all, I am not real tech savvy. I just upgraded from a Samsung Galaxy S5 to an S8 plus (yes I know I'm behind the times) and there's 3 settings on my new phone that I'm not sure about on the pull down menu. I've Googled and I'm still lost. So, do I want mobile data, NFC, and wi-fi calling on or off? I don't know if it matters but the majority of the time I'm at home and connect to my home wi-fi, although I do sometimes access apps when I'm out and about, but I NEVER use all my paid data. I also have unlimited talk and text. It would be greatly appreciated if someone could tell me if these 3 things are needed or not on my phone.