The Cat® S31 is built to survive. Its high quality rugged materials mean you can drop it, dirty it or dunk it in water with confidence. It’s packed with features that help in harsh or outdoor environments including a screen optimized for use in direct sunlight or when wet and a battery that lasts. Don’t let your phone hold you back, choose a survival expert; the Cat® S31. Technical Specifications: IP68 and MIL-Spec 810G, waterproof up to 1.2M for 35 minutes, drop proof up to 1.8M, Corning® Gorilla® Glass 3, salt fog, sand, dust, dirt, vibration and pressure resistant, Android™ Nougat (upgradable to Oreo), powerful 4,000 mAh battery, 8 MP rear camera and 16G ROM/2GB RAM. The Cat® S31 comes with a 1 Year Warranty.