• Ultra-bright 4" diagonal QVGA display, 320 x 240 pixels over 800 nits of brightness
  
• New streamlined user interface offers easy selection of functions and features
  
• Preloaded with worldwide satellite imagery and highly-detailed BlueChart g2 marine cartography of the coastal United States including Alaska, Hawaii and the Bahamas. This data provides detailed coastlines, shaded depth contours, navaids, port plans, wrecks, restricted areas and tide and current information.
  
• Preloaded with Explorer charts covering the Bahamas
  
• Single SD memory card slot for BlueChart g2 Vision cards, as well as saving waypoints, routes and tracks to a SD card which can be shared with others
  
• Built-in GPS antenna
  
• BNC connector for optional GA29 remote GPS antenna
  
• Backlit keypad for easier operation at night
  
• CANet™ proprietary bus allows display and control of full feature sounder data on Garmin chartplotters
  
• Two NMEA 0183 I/O ports 440
  
• Unit dimensions: 5.7"W x 5.0"H x 2.7"D

Enable the full functionality of the GPSMAP 440-series with the addition of a BlueChart g2 Vision SD card
BlueChart g2 Vision cards provide:

• High-resolution satellite imagery when overlaid on the chart, will provide the mariner with unparalleled situational awareness
  
• Aerial reference photography provides "real world" photos of ports, harbors, marinas, waterways, navigation landmarks and other points of interest, offering the mariner another powerful tool for navigating unfamiliar waters
  
• Mariners Eye view Provides the mariner with a 3-D perspective of chart information for a quick, reliable and easy position fix.
  
• Fish Eye view 3D perspective below the water line for displaying bottom contours based on bathymetric charting data
  
• Auto guidance technology will search the attributes of all relevant charts to suggest the best course for navigation
  
• Fishing charts, tides, currents, marine services, coastal roads and points of interest detail

Sounder Features:

• New sounder design featuring excellent shallow water performance
  
• Power output: 500 watts (RMS) 4000 watts (peak to peak), dual frequency - 400 watts (RMS) 3200 watts (peak to peak), dual beam
  
• Depth: 1,500 feet (dual frequency), 900 feet (dual beam)
  
• Includes a dual frequency transducer 50kHz (45°), 200kHz (10°) for maximum saltwater performance or choose the optional dual - beam transducer 80kHz (45°), 200kHz (14°) for maximum freshwater performance
  
• Patented transom/trolling mount transducer
  
• UltraScroll™ high rep rate sonar provides lightning-fast screen updates
  
• New AutoGain technology enhances target visibility
  
• See-Thru® technology: shows weak and strong returns simultaneously
  
• Water temperature log graphically records water temp data
  
• Round flasher display mode (in dual beam mode) and A-scope (in dual frequency mode)
  
• Whiteline
  
• Adjustable depth line helps gauge desired fishing levels and bottom clearance
  
• Split zoom display offers a closer look at fish targets and bottom structure
  
• 2X, 4X and bottomlock zoom
  
• Adjustable keel offset
  
• Alarms for fish size, shallow water, deep water and low battery