(KMOV.com) - If you own an old i-Phone you can trade it in for the new one.
Those who trade in the AT&T version can receive up to $275; trading in the Verizon and Sprint models can net you up to $230 for the 16GB iPhone 4-S. If you turn in a model with a smaller amount of memory space or if the screen is cracked you will receive less money.
Websites such as Craigslist, Ebay, Nextworth,and Gazelle allow you to see a price for your old model. Enter your make, model and carrier and those sites will give you an instant price.
