What do we want smartphones to be? While smaller OEMs may settle for cranking out excellent, reliable phones year-in and year-out, the giants of the mobile world seem to be interested in bigger, more existential questions. For five generations, Samsung has experimented with foldable form factors, allowing a smartphone to grow as large or as small as you need to fit the tasks at hand. Apple, meanwhile, seems focused on delivering an ecosystem its users love — even as life inside its walled garden grows staler by the day.