How much shoul di sell my iphone 4 for?

I have an iphone i'm trying to get rid of. How much is it worth selling it for?

You should definitely sell it to me for $5 and I'll include my grandfather, he is great with advice and you only have to feed him once a week.

You can sell your iPhone 4 through online. The price will be $150-$200 depending on the model. The shipping is free, prices are best and payment is fast.http://www.cellitused.com/