Not sure if NFC is a battery drain for those who do not want to use it. I know you can use it even when the screen is locked, and I loved that feature. Makes it absolutely flawless. I assume it's a very, very low output signal, hence, Near Field... But, is there also a way to turn it off? And does Airplane Mode turn it off?(Forgot to check this when I did a couple of Pay transactions earlier today.