One could argue that it isn't the stabilization of specs but that of appearance that is harming sales. Many consumers purchase an over-priced product/brand because it is over-priced if they can show it off in public. But that only works if it looks different from the lower cost or older models.
Yep. Also, they straight up stopped improving from a user perspective. Better specs doesn't mean more value.
I have a Nokia 6.1, it’s build quality isn’t differentiator from my partners iPhone and it’s aesthetic is really nice, black and copper.