Casio's second watch, the WSD-F20, doesn't look much different than the outdoor smartwatch it revealed at last year's CES. However, the software brains inside the ruggedized timepiece have been given a strong nudge forward. This is one of the first Android Wear 2.0 devices to surface, over half a year since we first got to play with Google's retooled wearable OS. The watch -- designed for outdoors types -- also comes equipped with low-power GPS and color maps that can be downloaded offline for true outdoorsmen and women. You will survive.