The third and newest version of Casio’s Pro Trek Wear OS smart watch is the WSD-F30, which features a slightly smaller case and an improved display to make your adventures easier to navigate and track. The new dual-color OLED display uses a Multi Timepiece Mode that blends advanced graphic capability with energy-saving features that keep battery life intact while allowing users to view time, altitude, and atmospheric data, plus a color map that can be called up with a single button tap. The feature set and list of functions for this watch go on and on and on. Check it out.