Apple watch
An iphone or an apple watch is undoubtedly made by apple,but of course that doesn't mean all it's components were.For years apple has relied on its competitor samsung for various chips,as well as the OLED screens for the iphone8 and iphoneX.As a result,samsung may pull in more profit on the ludicrously expensive handset than Apple will.But according to new reports,Apple doesn't intend to keep things that way and has a secret factory where it's working on building it's own screens.
You have a minor grammatical mistake in the following sentence:
It should be its own instead of it's own.My bad