Gazelle Will offer up to $350 for your old iPhone ahead of iPhone 6 announcement

When it comes to selling your old iPhone, we recommend visiting Gazelle, which lets you sell used electronic devices, is ramping up its iPhone trade-in offering ahead of the expected iPhone 6 announcement on September 9.

So what’s the big deal about Gazelle ? According to them, the website will look at your used iPhone and treat you up to a cool $350 in cold hard cash, dependent on its condition. Under the terms of the program, users have up until September 9 to get a price quote for their device.

As revealed by AppleInsider, customers can get a quote for their device during the extended price-lock window between now and September 9.

And this year the company is upping its price-lock window from the historical 30 days to over 50 days in order to make sure consumers can purchase and set up their new iPhone 6 long before having to drop their old iPhone into the mail. Gazelle says anyone who locks in a quote before the September 9 will have until October 10 to send theirs in.

According to the below chart showing historical price changes in device value around new iPhone announcements, Gazelle’s trade-in values typically drop 20 percent in the 60 days around the introduction of a new model.

Of course, eBay or Craigslist might be a better choice.

Here’s a handy list of trade-in quotes for used iPhones in “Good” condition that TUAW put together:

Current models

• iPhone 5s 64GB/32GB/16GB (Verizon) – $325/$310/$300
• iPhone 5s 64GB/32GB/16GB (T-Mobile) – $225/$220/$215
• iPhone 5s 64GB/32GB/16GB (Sprint) – $190/$185/$180
• iPhone 5s 64GB/32GB/16GB (AT&T) – $285/$275/$265
• iPhone 5c 32GB/16GB (Verizon) – $185/$180
• iPhone 5c 32GB/16GB (T-Mobile) – $155/$150
• iPhone 5c 32GB/16GB (Sprint) – $70/$65
• iPhone 5c 32GB/16GB (AT&T) – $155/$150

Older models