Here are some interesting charts from Gazelle at CES that compare trade-in values of the iPhone versus the competition. As you can see from the images above and below, the iPhone, like many Apple products, have tendency of retaining a higher trade-in value longer than other devices. In many situations, months after the release of a device, a broken iPhone 4S with a completely shattered display is worth more or about the same as a seemingly mint condition Galaxy S2 or Galaxy Nexus. A gallery of all the stats Gazelle had on display at CES is below:
//