which android version will it be running ? 4, 5, 6 , 7 it does not matter ? samsung will not upgrade it to a newer version. google designs this operating system but does not support it at all, its up to the manufactures of the phones to upgrade it for the customer. most part of the phones and tablets are running version 4 and 5 of android and will not get upgrade. not even security patches and bug fixes to current version. if android would be a operating system for computers (phones are actually computers?) maintained by google we would be in a bad place. our computers would be stuck at some version of the operating system. and would not get a upgrade. our hardware would only run at some version . the new version would not support old hardware ? people would be ###### if microsoft did this with win 10 ? if it would only work on some computers you can run it on almost any hardware ? it supports many times the hardware found in all the phones and tablets ? resently i plugged in a game usb controlller from 1999 plug and play indeed. just plug in no drivers no install just use.