All of which looks great on the large 4” screen. The included marine mount contains an integrated power cable and tilts/swivels for optimum viewing at any angle.

No matter the setting – boat, car, RV, or ATV – Montana is right at home.

• 4” sunlight readable touchscreen display
• High-sensitivity, WAAS-enabled GPS receiver with HotFix
• Wirelessly share routes, tracks, waypoints and more betweencompatible units
• Worldwide built-in basemap with shaded relief
• 3-axis compass – shows heading even when standing still
• Barometric altimeter – pinpoint precise altitude or plot the barometric pressure over time to keep an eye on changing weather conditions
• Rugged and waterproof
• 3.5mm audio jack
• microSD card slot to load additional maps
• Multiple battery options – user replaceable 3 AA (up to 22 hours) or included rechargeable Li-ion (up to 16 hours)
• High-speed USB and serial interface

BlueChart g2 Features

• Marine coast chart coverage for the U.S., including Alaska, Hawaii and detailed charts for the Bahamas.
• Shaded depth contours and inter-tidal zones with spot soundings
• Port plans
• Tidal stations
• Aids to navigation
• Wrecks, restricted areas, anchorages and obstructions
• Tidal current graphs
• Marina points of interest and slipways
• Full bathymetric fishing charts providing detailed contours

Physical & Performance:

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:  bright, 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 (not included) 
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 
Preloaded maps:  no 
Ability to add maps:  yes 
Built-in memory:  3.0 GB 
Accepts data cards:  microSD™ card (not included) 
Waypoints/favorites/locations:  4000 
Routes:  200 
Track log:  10,000 points, 200 saved tracks
 
Features & Benefits:

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:  no 
Geocaching-friendly:  yes (paperless) 
Custom maps compatible:  yes 
Photo navigation (navigate to geotagged photos):  yes 
Outdoor GPS games:  no 
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