- br br Top Deal Review - Garmin Montana 600 Waterproof Hiking GPSbr br Technical Detailsbr Edition: 600 - 3GB capacitybr 3-axis compass and barometric altimeterbr Bright 4" sunlight readable touchscreen color displaybr High-sensitivity, WAAS-enabled GPS receiverbr Its easy-to-use interface means you'll spend more time enjoying the outdoors and less time searching for information.br Both durable and waterproof, Montana 600 is built to withstand the elements.