In settings it does not list "operating system". It says "Android version" 7.1.1 It does not say Nougat but that is what a previous answer and others are telling me. No where can I find the word operating system or the word Nougat. This is not my world. I needed to know the operating system and somehow I am supposed to know that it is Android 7.1.1 Nougat from a listing for Version. Thanks for responded. I think I'll go back to cans, string and buttons. Laus Deo!