Though it might not carry your clubs, the Casio PRO TREK Smart WSD-F30 is quick to offer you essential tips for your game via the Hole19 app like course download, GPS distances and auto-change hole and more. Powered by Google’s Wear OS, Casio’s WSD-F30 also offers Extend Mode, which enables the use of offline color maps and GPS for up to three consecutive days on just a single charge — it conserves energy by switching the operating system to energy-saving stand-by mode on a schedule set by the user. The enhanced dual-layer monochrome and color display employs an organic EL display that shows maps and data in finer detail. It’s built to military standard specifications and water resistant up to 50 meters.