Apple certainly uses hardware partners to make components of their systems. Apple has an advantage in that they can charge more for their systems due to their b

Apple certainly uses hardware partners to make components of their systems. Apple has an advantage in that they can charge more for their systems due to their brand value and reputation. Since the value of their products are high they have less of a need to cut corners and oversight to maintain margin. Chinese manufactures produce the quality to the spec you give them and you pay for.