Humminbird 787c2 Combo 5-Inch Waterproof Fishfinder and Marine GPS Chartplotter With Dual-Beam Transducer Full-featured fish finder and external 16-channel WAAS/EGNOS GPS receiver with chartplotting 5-inch, TFT LCD display with 640 x 480 pixels of resolution in 256 colors for enhanced separation 60-degree, and 20-degree beam for both fish location better bottom definition to 1,500 feet Built-in 4 nautical mile resolution UniMap of USA inland lakes, rivers and coastal areas Measures 6.9 x 7.7 x 4.5 inches (W x H x D), and backed by limited 1-year warranty