The NSS 4 chartplotter and fishfinder redefines what's possible out on the water. With a trio of hybrid controls, a lightning quick Qualcomm processor, and sonar support, NSS 4 is our premium, all-in-one offering for sportfishing enthusiasts and cruisers. This model DOES NOT include built-in sonar, making it perfect for boaters who want a flexible setup. To add sonar capabilities, pair it with an NSS 4 sonar-enabled display with built-in sonar (or another supported Simrad display with built-in sonar) or connect it to a Simrad Sonar Module via Ethernet.