I have a Tracfone Samsung-something, entry-level, cheap. Works fine except for a major design flaw which is clearly intentional on the part of the makers. You can use it to go online and get data -- I don't know, sports scores, weather... I totally am uninterested in this. But the top-level screen has two choices, Menu or Browser. And Browser is the button that in normal menu operation goes back out of something to the previous level. So it is absurdly easy to find yourself losing minutes connected to the Internet when you had no such intention. Fortunately the hang-up/end/exit button has no such ambiguities. I have trained myself to "when in doubt, hit END" and they haven't managed to steal any minutes from me in a while.