Boat Watch Xtend is a water-based solar boat tracker that helps you monitor and manage your vessels from anywhere in the world. With features like weather alerts for severe storm warnings, live marine traffic updates, tracking of boats, kayaks, canoes, surfboards, and more - covering a range of maritime activities like fishing, sailing, and cruising - this device has something for everyone. Plus, it comes with a built-in SIM card so that you don't have to worry about using up any of your data allowance or paying roaming charges while on voyages.