Apple has always done it right. The old MacBooks were constructed from a premium precision engineered poly-carbonate. And it's the same with the 5C. That's why Jony Ive says Apple is unashamed of this, because the product is top quality with absolutely no visible seams. Samsung's are not seamless, they are not rugged, they are flimsy cheap plastic toys.
Yes they are not seamless because they actually allow you to swap out your battery and SD card. They could easily go down the route and make a seamless galaxy 5, but they won't because they actually believe in giving customers some kind of freedom. I mean how long is apple going to Gouge consumers on storage? It's ridiculous, not even Google and the nexus line are that bad and Google is a lot more focused on the cloud than apple.