You know, there's a reason why the iPhone is classified as a smartphone.
It's not because it has a touch screen or because it has more features than a flip phone. It has nothing to do with its design or LTE networking or sensors, nor is it because of its 64-bit chip. Quite frankly, it's not because of anything that it does, but rather what it can do — boundless capabilities made possible by hundreds of thousands of native apps, tiny programs running on a dedicated, independent operating system. They don't need any assistance; install them and they just work.
Back in 2007, some people questioned whether the iPhone was truly a smartphone since it lacked this basic ability, but today the term is applied much more loosely. Anything that can be controlled by an iPhone is suddenly a smart this or smart that, and we seem to have forgotten what actually makes these gadgets intelligent.
And that includes all those watches everyone keeps talking about.