Get a certified, like-new Apple iPhone 5s (16GB) with a 2-year contract for $99.99 at AT&T. Plus, this shipping is free. This is the best price we could find for re-certified iPhone 5s in "like new" condition from a major carrier by $100. The 5s has a 4" retina display, fingerprint scanner, an 8mp camera and more. A 2-year contract is required and all re-certified phones come with a full 90-day warranty. Sales tax is charged in most states.