The man who made himself one iPhone with parts bought from the electronics markets in Shenzhen, he made a video clip in which he tells us if the whole experience is worth at least trying. In the video clip below you can see the man who became famous on the internet because he made an iPhone 6S using only parts, he explains how much it really costs to make an iPhone yourself and how difficult the whole process is, in essence.
Between 300 and 1000 dollars are needed to make an iPhone yourself, but also a lot of patience, plus specialized people to help you do this. The price covers not only the necessary components, but also the components you break in the process, the tools needed to make the assembly, plus any teaching materials you need to make your phone.
Is it worth assembling an iPhone yourself in China, or anywhere else? The American answer is, NO! The phone he ended up paying $1000 for can be built in parts for $300, but second-hand costs between $250 and $350 at the time he got involved in the process, so it's not really worth it to complicate yourself when you can buy one without problems.
It's easier to buy a used phone from someone who has taken care of it than to make one yourself, so listen to the advice of someone who has actually been through it.
