This is so amazing. This man put together his own iPhone 6s with parts he sourced and bought in Shenzhen. In the process, his video shows an in-depth look at how Apple may put together some of these phones. Apple would certainly never show these steps like this. Everything needed in this phone is so tiny and yet this guy has almost no problem finding every small part. They sometimes even come in small plastic bags. How do these vendors even keep track of this stuff?