From some Amazon reviews, these work with iPhone 5c/5s but with without fingerprint functionality. They are available for $22.99 prime — it looks like they will stay there from the history if you want to think about it a few days — with additional colors available.
Amazon price history: http://camelcamelcamel.com/OtterBox-Armor-Series-Waterproof-iPhone/product/B00B59NKRK
If you want be able to throw your phone off a cliff or go swimming with it and have your phone survive this is a great case.
If you want to be able to talk on your phone your wasting your money.
I agree with the previous comment about talking on the phone. The case muffles your voice. It is frustrating and the makers know about the problem. I hear that the newer models may have a fix built into them. Otherwise this is a great price. Selling on ebay for 15.99 and free shipping if you need to compare.