I assumed you meant yearly because the idea that someone would be able to afford a €400 phone but not a €500 phone just doesn’t make sense when you’re talking about monthly income. Someone making €2k monthly is looking at less 1% of their annual income difference for a device they’ll buy once or twice per decade. It’s a noticeable amount of money, sure, but I’d be quite surprised if that was the area they’d feel a priority to economize.