I wouldn‘t call an iPhone a piece of art though.
They certainly are art in this context.*
And I'd argue that Apple are one of the few tech companies that genuinely view their products as art objects, as well as being boxes of mass-produced consumer technology.
* There's a wider question about whether the mere act of displaying something in a gallery makes it art, but its one that many fine art postgrads haven't been able to get to the bottom of yet :)
Speaking very broadly: Designers manifest other people's ideas for money. Art is more when you bring your own ideas into the world because you want to.
so like it or not i would say that iphone is a piece of art that others loved and copied. (which is good and completely natural).