Its Full HD IPS touchscreen is designed for wide viewing angles, strong sunlight readability and clarity even through polarized sunglasses, and multiple 8400-series units can be flat-mounted edge-to-edge for a seamless glass-bridge helm look, or flush-mounted individually. A premium-performance processor is specced for fast chart redraw, video distribution across the network and smooth multi-window layouts. Connectivity includes NMEA 2000 for the wider marine electronics network, plus built-in ANT and Wi-Fi, and it doubles as a standard USB touchscreen monitor for a connected Windows or Mac computer when needed. Chart coverage is expandable via BlueChart g3 and BlueChart g3 Vision (which includes Navionics data) for detailed regional and Auto Guidance routing beyond the worldwide reference basemap it ships with. It also includes Garmin's SailAssist feature set, giving racing/cruising sailors start-line timing, layline and other pre-race data overlays directly on the plotter -- useful context for a boat that's sail-rigged rather than purely a powerboat helm display.