A couple of weeks back we ranked the 5 best smartphones available for construction work. Two of the phones on that list come shock-, dust- and waterproof out of the box. But not every phone is made to be as tough as the Cat B15 and if you plan on bringing your iPhone or Android device out to the jobsite, it’s a good idea to protect your investment with a solid case. So, we went and rounded up the best and toughest iPhone and Android cases we could find for you in this top 5 countdown. In it, we considered the amount of protection chiefly but tried to find some good values as well. Get started by clicking below.