If you look at
for example, you can see how an Android phone that here where I live can be bought for the equivalent of under $500 beating soundly, on performance, an iPhone that costs nearly twice as much. And it's a nicer phone construction-wise as well, has a better screen, a better camera, better battery life, faster fingerprint reader etc. And of course there are many other great Android phones out there and even faster ones.
It's not that the iPhone is a bad product. I think it's an ok product, although personally I find Android a much more fluid phone OS from the point of view of doing stuff and jumping from something to something else.
But the Porsche analogy doesn't hold. There's no phone for which the analogy would hold. The difference between a premium and ultra-premium car and a normal one is quite large, and it has to be, since you pay many more tens of thousands extra. While Apple overcharges for the iPhone, the baseline is in the hundreds of dollars, so you couldn't get that much more. In my opinion, you generally get a bit less but it's fashion tech so it's a matter of taste.