IPhone 5 or 5c? Which to upgrade to?

Upgrading from the iPhone 4s, not sure which to buy. I love the iPhone 5, but I don't want to be stuck with it for the next two years considering the iPhone 6 will be coming out… I don't need the newest or fastest iPhone, so I wouldn't need to upgrade to the 6, but I don't know which to choose… I also am not a fan of the colors of the 5c, so I would be getting the white. What should I do?

They are virtually the same handset, this video may help you

Get which ever one they're the same thing the only difference is that the iPhone 5c is heavier because of the colored case.