Humminbird 698ci HD SI Review in 2024 – Fish Finder

Humminbird 698ci HD SI Review

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The Humminbird 698ci HD Side Imaging fish finder/chartplotter brings you Humminbird’s powerful Side Imaging technology at a price that doesn’t break the bank. Humminbird offers two other Side Imaging units – both of which cost well over $1000!

With a brilliant 256-color, 640×640 5″ backlit display, the 698ci shines as a fish finder and a chartplotter. It’s traditional 2D SONAR frequencies are 83 and 200 kHz, and it also features Side Imaging and Down Imaging at 455 kHz, letting you see camera-like images as deep as 100 feet.

The built in charts are Uni-Map, with a memory card slot for expanding with more maps and saving waypoints of good fishing spots – so you never have to roam around looking again – load up your waypoint, navigate to it, and you reach where the fish are!

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Humminbird’s Side Imaging is a revolutionary new technology that is completely changing the way we fish – now, instead of just seeing below your boat, you can see up to 240 feet on EACH SIDE of your boat – for a total view of 480 feet! See the water column, structure, sunken objects, baitfish, and everything else you need to see all around you! Unlike traditional SONAR that moves from right to left, Side Imaging SONAR readings move from up to down – so you see a reading of exactly what you just passed. It’s a good idea to drive around the lake or river with Side Imaging turned on first so you can scout the area – the you can set waypoints, go back to promising spots, and start reelin’ em in!


Freeze frame SONAR readings so you can study what you just saw – the 598ci also enhances SONAR readings real-time so you get a sharper and clearer picture. You can also view charts and SONAR both as a split screen, showing you all the data you need to see at once!

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 Graph
  • Temperature Alarm
  • Triplog
  • X-Press™ Menu System

Humminbird 698ci


  • Humminbird UniMap™
  • Navionics Compatible
  • LakeMaster Compatible


  • Waypoints: 2,500
  • Routes: 50
  • Tracks: 50 w/20,000 points each
  • 200 kHz / 20° @ -10db
  • Side Imaging®/Down Imaging®
  • 455 kHz / (2) 86° @ -10db
  • 180° total coverage
  • GPS Speed


  • 698ci HD SI
  • Transom mount transducer
  • Mounting bracket
  • Installation hardware
  • Owner’s manual

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Shane Baker

Shane Baker

My name is Shane Baker and when I am not with my family or working here I am out fishing! I caught my first fish when I was 6 – it was a trout at a stocked pond here in TX. Ever since fishing has been a passion of mine!

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