The Casio G'zOne Ravine 3 features includes a design that meets military standard 810G for resistance to the elements, shock, humidity, altitude, radiation and dust. It also includes a host of outdoor-orientated applications like a tide tracker, pedometer, sunrise and sunset chart, and thermometer. In addition, the Ravine has a 3.2-megapixel camera which can take both still shots and video at 14 frames per second. Additional features include USB mass storage, push-to-talk capability, integrated GPS and a microSD slot.
The phone also has a 2.5-mm headphone jack and is capable of storing and playing music. Above the external LED display is a second microphone, so the Ravine can be used as a walkie-talkie. On the outside of the phone are keys for voice command, volume and push-to-talk. The speakerphone button can also be used to toggle the phone's LED light to use it as a flashlight. Inside the phone cover is a 65k-color, 2.2-inch display.
The G'zOne Ravine is designed primarily to be a rugged phone for outdoor type consumers. It lacks a touch screen or QWERTY keyboard, although it still has text messaging capability. In testing by PCMag, the phone was subjected to throws against the ground both closed and open as well as being run over repeatedly by a car. In all instances, the phone kept functioning and the screen was undamaged.