In all honesty, the first smartphones comparable to the iPhone were Windows Phones. The problem is that the low responsiveness, the unintuitive Desktop computer style UI, need for a stylus, the high weight, the ugly designs, the fragile screens and lack of an app store made them in practice unusable for the common person.
Err, which Windows Phones are you talking about? Lumias were nothing like what you mentioned.
Actually, Windows phone was the first OS to enjoy the level of polish the iPhone had.
That's Windows Mobile, not Windows Phone.
Right, that thing. They do have something in common, both are defunct, I forgot which was which.