Key Features

Brilliant 5″ HD LCD display
640V x 480H resolution
Built-in UniMap and SD card slot
Down Imaging for more detail
Transom-mount transducer included
Humminbird 688ci HD DI Chartplotter Fishfinder Combo

With hallmark technologies like Down Imaging and SwitchFire sonar, the Humminbird 688ci HD DI provides expansive fishfinding power at a compact price. A brilliant 5″ HD LCD display with 640V x 480H resolution delivers amazing clarity. The ultra-fast 10kHz internal GPS comes with a built-in UniMap to pinpoint your location and an SD card slot for adding maps and saving waypoints. Three programmable preset buttons let you easily save your favorite views. Convenient Tilt and Swivel Quick Disconnect or in-dash mount. 500 watts RMS.

Humminbird 688ci HD DI GPS Features
• Internal Precision GPS
• 2,500 Waypoints
• 45 Routes
• 50 Tracks w/20,000 Points Each
• Trackplotting
• Chartplotting
• GPS Speed
• Humminbird UniMap Built-In
• Single SD Card Slot

Humminbird 688ci HD DI Advanced Sonar Features
• Down Imaging Sonar for More Detail
• Switchfire Sonar
• Screen Snap Shot to Memory Card
• Sonar Recording
• Split Screen Zoom
• Split Screen Bottom Lock
• Wide Narrow Cone Split Screen
• Instant Image Update
• Freeze Frame with the Ability to Mark Structure on Sonar
• Selective Fish ID
• Real Time Sonar RTS Window
• Sonar Echo Enhancement
• TrueArch Technology

Humminbird 688ci HD DI User-Friendly Technology
• 3D Chart View
• Large Digits View
• Custom View Selections
• Custom Digital Readout Selection
• Selectable Display Colors
• Selectable Background Colors
• View Preset Keys
• Temperature Alarm
• Triplog
• X-Press Menu System