"14.5 CM WIDTH, 12.7 HEIGHT, 6.9 DEPTH; 590 GRAMS WEIGHT; NO BATTERY; WATERPROOF; BASEMAP INCLUDED; 3,000 WAYPOINTS; 10,000 POINTS TRACK LOG; 50 SAVED TRACKS; GARMIN SONAR COMPATIBLE; SUPPORTS AIS AND DSC; AUDIBLE ALARMS; TIDE TABLES; SUN AND MOON INFORMATION; 3-D MAP VIEW; XM-WX WEATHER AND RADIO FOR U.S. AND CANADA; NON PORTABLE"
FTLD
FUNCTIONAL DESCRIPTION
"COMPACT CHARTPLOTTER THAT FEATURES AN ULTRA-BRIGHT 10.16 CM QVGA COLOR DISPLAY ALONG WITH AN IMPROVED HIGH-SPEED DIGITAL DESIGN FOR INCREASED MAP DRAWING AND PANNING SPEEDS. BUILT-IN, SATELLITE-ENHANCED WORLDWIDE BASEMAP AND AN EASY-TO-USE INTERFACE DESIGNED TO HELP YOU NAVIGATE THE OPEN WATERS WITH EASE. THE GPSMAP 421 ALSO ACCEPTS BLUECHART G2 VISION CARDS FOR ADDED FEATURES AND FUNCTIONALITY SUCH AS HIGH-RESOLUTION SATELLITE IMAGERY, 3-D VIEWS AND AUTO GUIDANCE TECHNOLOGY"