That's closer to what my peers are spending. They are outliers, though, living in a developed country, working well-paying jobs, almost all tech nerds. I have a hard time imagining that the world wide average or even a national average for Australia is anywhere near that. That said, I haven't found any non-paywalled comprehensive survey data on the subject so I'll leave it at that.

This seems promising, in case anyone has an account: https://www.statista.com/statistics/283334/average-smartphon...