Was Apple the first one to have a Lock Screen on a phone? Was apple the first one to have an always on display? Was apple the first one to put Touch ID on a phone? The answer to all of these is no. Are they all features of an iPhone? yes. Its always a tough question of where to draw the line with copyright infringement, especially in a space where copying the competitors is so frequent. I don't know if I can say if the amount of copying that goes on in the smart phone industry is ethical or not, but the utilitarian in me would be quick to point out its benefits. The experience I have on my iphone is constantly improving because of the improvements that Android makes. Likewise Android is constantly improving because of the improvements that IOS makes. It's one of the reasons that smart phones have improved so rapidly in the fifteen years since the first iphone came out.