I think your definition of a burner phone is different than what the article describes. It's not supposed to have much in the way of navigation/UI. To place a call it should be just unlock it, open it (for flip kind), press the numbers and then press the green button :)

I bought one for my 8 yod, unknown brand "Plum" and works great, battery lasts like a week.

In my case, I got it for emergencies.