Satellite Overlays with SonarChart Shading SonarChart Shading gives a detailed rendering of the seafloor and lake bottoms in varying shades of blue and provides you with a greater awareness of the surrounding environment. This visual data, created from HD SonarChart data, can help you identify the areas richest in fish. View Coverage
Relief Shading For coastal and inland boat owners who need to know as much as possible about depths and bottom structure maps, relief shading delivers highly detailed shading that combines color and shadow to provide an easy-to-interpret, clearer view of bottom structure than contour lines alone. View Coverage
We make up to 5,000 updates to our charts every day. A one-year subscription to Daily Updates and the features listed below is included when you purchase any region.
See our worldwide updates instantly, and locate them on our Heatmap.
Dock-to-dock Autorouting1 creates a suggested route based on chart data and navigation aids.
- Wi-Fi model locates your approximate position if Wi-Fi connected - Wi-Fi+3G model operates similar to iPhone with regard to GPS
Have a plotter?
If you, like millions of boaters around the world, love our app, why not also get the same great charts and features on your plotter? Engage both devices to easily download chart updates for your plotter via mobile, plan a route and then transfer it from mobile to plotter and more!