Half of the world's iPhones are made at a sprawling Foxconn factory complex in Zhengzhou, China.
It employs as many as 350,000 people and has spawned a mini city that residents have taken to calling "iPhone City."
We spent a day in iPhone City, talking with residents, shop owners, and factory workers to hear about their lives.
The story that emerged was one of low pay and long hours, but altogether not that different from other factories in China.
Foxconn, the workers told us, is no better or worse than any of the other factories they had worked at.
But few saw a way out of the grinding factory lifestyle in which they work six days a week, see their spouses once weekly if they are lucky, and frequently work dozens of hours of overtime.