How much is my iphone 5s and my iphone 4s worth?

I have no clue its really confusing to me when I look on Craigslist its really confusing so I have no idea

My iphone 5s has no scratches on it, its gold 16g, and its only a month old and its like new

My moms iphone 4s has no scratches on it, its white, I think its 8g, and this one is factory unlocked

What would these sell for?

Both are At&T

Nothing, Apple is trash and At&t is overpriced