So Kelvins, but with a human degree... Well, could be worse. At least it has the zero in a sensible place.
"Uh, interesting! We have zero at the temperature where water freezes, and one hundred where it boils. Less human, I guess, but still easy to remember. Other countries use a different system that's just weird, something to do with body temperature but then it's wrong so it's a different number or something. There are also Kelvins, which are still 100 degrees between freezing and boiling, but have the zero at the same point as your scale."
"Yeah, I think it's fine to get the cheaper phone, would that mean that I can afford two of them? It seems I might be able to move small objects between worlds, and if that's true it should be easy to get more money by selling things from one world into the other."