Get the most money for your iPhone before trade-in values plummet ahead of Sept. 10 event

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Update: Gazelle has announced an extended 50-day price lock window. That will give you until October 15th to send your iPhone in, but you’ll have to lock in your price before Apple’s September 10th event to take advantage.

With the unveiling of a next-generation iPhone expected on September 10th, it’s once again time to start thinking about trade-in options for your current device. While iPhones typically hold their resale value much better than competing devices, previous iPhone models historically experience a big drop in trade-in value in the 3-4 weeks leading up to an iPhone announcement. That’s highlighted in the chart above showing average decline in selling prices for previous gen iPhones leading up to the iPhone 5 launch.

With reliable reports of the next-gen iPhone coming early next month (no word on if that means the rumored iPhone 5S, 5C, or both), now is the time to get the most for your iPhone if you plan on upgrading when Apple’s new device finally becomes available. Apple is testing its own trade-in program that should launch in the coming months, but until then we’ve put together a chart showing where to get the most out of your device today: Read more