I suspect that you're right, but only because of the rise in AI.
At a certain point we'll all have AI personal assistants that are easier to use, more convenient, and less harmful to us than smartphones have historically been. The cool kids will move to the shinier new format, and the poor will continue to use the moderately dangerous, addictive, less efficient legacy tech for a long while.
Maybe these things will come in smart glasses format that we interact with primarily by voice, better smart watches that don't require a phone at all, or maybe it will be something like the star trek communicator?
At a certain point we'll all have AI personal assistants that are easier to use, more convenient, and less harmful to us than smartphones have historically been. The cool kids will move to the shinier new format, and the poor will continue to use the moderately dangerous, addictive, less efficient legacy tech for a long while.
Maybe these things will come in smart glasses format that we interact with primarily by voice, better smart watches that don't require a phone at all, or maybe it will be something like the star trek communicator?