Cat S41 and Cat S31 pack large batteries and IP68 certification
The 2017 of Construction Christmas gift list -Cat S41 Smartphone
Cat Rugged Phones - Cat S41 | Share The Power | Cat phones | Facebook | By Cat Rugged Phones | Share the power with the Cat S41's battery share function -
Amazon.com: CAT PHONES S41 Unlocked Rugged Waterproof Smartphone, Network Certified (GSM), U.S. Optimized (Single Sim) with 2-year Warranty Including 2 Year Screen Replacement : Cell Phones & Accessories