The perfect navigational solution for boats and small yachts that do not have a chartplotter. Simple navigation with the handheld GPS device for marking and storing 1000 waypoints and 100 tracks. Also features a marking function for location. The Garmin SailAssist calculates a virtual starting line, the course line supported by a countdown timer and tack assist. Calculate expected arrival times or other marine data. The device finds satellites quickly, floats and has a built-in lighting. NMEA 0183 compatible. Weight: 203 g; Dimensions: 6.6 x 15.2 x 3.0 cm.