recently my husband and me were buying new phones. i had trouble finding a decent smartphone (decent = good specs) which is <= 4,5". incredibly annoying. i simply want a strong device that fits nicely in my pants pocket, and it seems that's a weird request... my husband wanted one with a physical keyboard - now that's science fiction. completely unavailable in Europe at the time (aside from ancient phones on eBay).
so, this trend analysis seems really ridiculous. consumers have a very limited choice in the matter. the companies behave like sheep, and most writing about the market is sycophantic crap.