Almost every day, a fancy smartphone gets crushed at the construction site where you work. If you want the right phone for your workplace, then get one of the Casio G'zOne cell phones. If you need only a basic phone to call and text with, a Casio G'zOne Brigade is a durable choice. The Brigade is a ruggedized messaging phone with a clamshell design. It has a full QWERTY keyboard, a 1.2-inch monochrome external display, and a 2.9-inch color display. This phone works well on Verizon's network and also supports push-to-talk, a feature beloved by field workers. To make the Brigade rugged, Casio wrapped it in silicon rubber, reinforced plastic, and polyurethane. While the Brigade is a basic messaging phone, Casio Commando is an Android smartphone with a 3.6-inch touchscreen display. The Commando is the first ruggedized smartphone to pass the MIL-STD-810G military standard test. It can survive your harsh working environment and still allow you to tweet, watch a YouTube video, and play Candy Crush (on your break, of course). You can find both of these Casio G'zOne phones among the wide selection of cell phones and smartphones available on eBay.