I thought iPhone was not a smartphone.
Where did you get that impression? It could be that you are right. The iPhone is more a hand held computer that has a cellular phone included.
You said — I thought iPhone was not a smartphone.
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Well..., there was a problem categorizing the iPhone, so the best they could do was to come up with the “highest category possible” for a phone, in general, and put the iPhone in that category.
Unfortunately, it turned out that this was like comparing the NASA Space Shuttle to a bunch of Amish Black horse carriages...
But, what else can you do? LOL...