We've written many times before about the working conditions at Foxconn and other Chinese plants at which nearly all of the electronics used for gaming are manufactured. The short version is, its not great. Factory workers manage extraordinary hours for very little pay, living in cramped conditions. Following a spate of suicides in 2010 and 2011, a threatened mass suicide action this January at a factory where Xbox 360 units are built drew international attention.
Apple has come under the loudest, most repeated scrutiny, with games like Molleindustria's Phone Story drawing attention to the issue. However, Microsoft, Sony, and a wide array of PC and Android device companies use the same or very similar factories.