Many say that Apple don't invent things but get them from elsewhere. That is true, but not in the intended pejorative sense people mean. For instance I work on the same floor in the building where WiFi was invented. But Steve Jobs demonstrated WiFi first at WWDC in 1999.
Apple frequently takes these ideas and gives them life outside of being curiosity in labs. Even the GUI, which would have remained a curiosity at Xerox PARC. However, Apple and Jef Raskin were working on similar ideas at the time.
Apple works out how people can use these things. Other companies just add the hardware, etc into their products but don't really work out how people will use them. Apple is a champion at putting technology together with usage patterns to make the technology really useful.
Their products become successful and profitable. Other companies see the profit and want some of that so just copy - and usually in an inferior way because they are trying to get their product to market as quickly as possible. Samsung is such a company and some of their failures are testament to that. Before it was Microsoft with the inferior Windows. But MS is still doing that with its Surface products - tailor the OS to portable form factor? No, it's quicker just to force Windows into everything so they can compete now.