The idea behind the Montana is to be a device that can get you to your destination like a regular dedicated car GPS using Garmin's tried and true City Navigator spoken turn-by-turn directions, then unclipping the device and taking it with you on the next leg of your trip, whether by boat, ATV, mountain biking, hiking, hunting, fishing, and more. If you need local topographic maps or lake or ocean charts, these may be purchased form Garmin and downloaded or plugged in as a microSD card.
Overall, this is an impressive new entry into an adventurous outdoor market segment that's been hankering for just this device. Backcountry and boating trips are usually bracketed by road trips, and the Montana, with its powered mount options, is the way to go.
Specifications
Unit dimensions, WxHxD: 2.9" x 5.7" x 1.4" (7.48 x 14.42 x 3.64 cm)
Display size, WxH: 2"W x 3.5"H (5.06 x 8.93 cm); 4" diag (10.2 cm)
Display resolution, WxH: 272 x 480 pixels
Display type: transflective 65k color TFT, dual-orientation touchscreen; sunlight readable
Weight: 10.2 oz (289 g) with included lithium-ion battery pack; 11.7 oz (333 g) with 3 AA batteries
Battery: rechargeable lithium-ion (included) or 3 AA batteries (not included); NiMH or Lithium recommended
Battery life: up to 16 hours (lithium-ion); up to 22 hours (AA batteries)
Waterproof: yes (IPX7)
Floats: no
High-sensitivity receiver: yes
Interface: high-speed USB and NMEA 0183 compatible
Maps & Memory
Basemap: yes
Ability to add maps: yes
Built-in memory: 3.5 GB
Accepts data cards: microSD™ card (not included)
Waypoints/favorites/locations: 2000inter
Routes: 200
Track log: 10,000 points, 200 saved tracks
Features
Automatic routing (turn by turn routing on roads): yes (with optional mapping for detailed roads)
Electronic compass: yes (tilt-compensated, 3-axis)
Touchscreen: yes
Barometric altimeter: yes
Camera: yes (5 megapixel with autofocus; automatic geo-tagging)
Geocaching-friendly: yes (paperless)
Custom maps compatible: yes
Photo navigation (navigate to geotagged photos): yes
Hunt/fish calendar: yes
Sun and moon information: yes
Tide tables: yes
Area calculation: yes
Custom POIs (ability to add additional points of interest): yes
Unit-to-unit transfer (shares data wirelessly with similar units): yes
Picture viewer: yes
Garmin Connect™ compatible (online community where you analyze, categorize and share data): yes