Samsung had a smartphone breakthrough last year with the Galaxy S III, which sold 50 million units worldwide. This year's followup, the Galaxy S4, doesn't feel quite as eventful, but its hardware improvements and user-interface refinements are enough to preserve its status as one of the best Android smartphones.
If Apple or Samsung released the BlackBerry Z10, everyone would call it boring. But those two companies probably wouldn't have introduced a device with such fanfare. BlackBerry, of course, had no choice.