Chartplotting compatible with LakeMaster™ and Navionics® charts
High definition 5" 640Vx640H LCD 256 color display
The Humminbird® 798ci HD SI Sonar GPS+WAAS Chartplotter Combo features Side Imaging® Sonar combined with SwitchFire™ downlooking sonar with CLEAR and MAX modes for outstanding performace in any conditions. 50 Channel GPS+WAAS, and chartplotting compatible with LakeMaster™ and Navionics® charts. View it all on the industry-best high definition 5" 640Vx640H LCD 256 color display. Sonar Coverage: 20º/60º/180º. Power Output PtP: 4000 watts. Depth: 1500'. Speed/Temp: Included. In-Dash Mount: 5.4''H x 6.9''W.
Side Imaging® View up to 480 feet of the bottom with picture-like clarity using Side Imaging Sonar.
Down Imaging™ Use Down Imaging to reveal cover and structure detail below your boat.
SwitchFire™ Exclusive Humminbird® SwitchFire Sonar gives you the power to choose how displays are returned. Max Mode displays every return for the most complete picture while Clear Mode filters returns to display only fish and structure.
DualBeam PLUS™ Provides 20º and 60º beams to see below the boat with better structure and bottom hardness definition.
ContourXD™ Built-In Map ContourXD™ cartography is provided by Navionics® and contains coverage for 3,000 U.S. lakes. Maps contain depth contour lines, U.S. lights/markers, and major roads/interstates.
50 Channel GPS Humminbird's 50-Channel Internal GPS/WAAS receiver gives you lightning fast position fixes accurate within 2.5 meters.
Ethernet Networking Instantly puts critical information at your command, anywhere on the boat. High-speed ethernet lets you share sonar, GPS, and waypoints between compatible units.
Rated 5 out of 5 by blade4130 Love It!
I have had this depth finder for over a year now and have nothing but great things to say about it. It was a learning curve at first, but as soon as I understood everything it became a dream come true. I wouldn't go with anything else as far as I am concerned.
May 17, 2013
Rated 1 out of 5 by JBoneSC Poor quality
I am providing a zero star review of this product after having spent 2 years trying to work out all of my problems with Humminbird. 1. The instructions for mounting the transducer make my boat hull unusable (Nitro NX882 with a 150). Didn't think that would be a problem. I installed it in the location that met the majority of the instructions. The quality of the side finding capability in this location was poor due to the motor. During the first few months the transducer was ripped from the mount and cable that connected it to the unit. Humminbird replaced that transducer. After remounting it, the mounting bracket broke again and the new transducer maintained connection to the unit. I took the boat to a dealer and paid for them to move the mounting to the best location based on their experience (no local certified installers#. Since then I have broken the mounting bracket 3 times. 2. About a year into ownership the unit would not power on until after the first run of the day. After changing batteries and following all of Humminbirds instructions for debugging I could not resolve the issue. I sent the unit in for repair to the tune of $200+s+h. 3. After having the unit repaired...now, it will not stay on during a run with any rough water whatsoever and the unit is now unable to scroll through the various screens. It is stuck on GPS and recordings. Humminbird is sending me a return label. In summary, ~$1500 #original price, 3 mounting brackets, installation costs, repair costs, and S+H) for a GPS unit that will not stay powered on when you need it most is not a good investment. This unit has also never been able to read depth at a speed over idle. I loved this unit for the first week. Disappointed it wouldn't read depth on plane, but that was in the warnings so it wasn't unexpected. Now I am sick that I have spent so much $ on something that still doesn't work correctly with no end in sight. If I can edit this review I will add the picture of the unit attempting to power on.
May 1, 2013
Rated 5 out of 5 by boatingfishing Totally Love IT!!
Been wanting to make this purchase for a long time.
It is well worth the money!! I would recommend it to anyone that loves to fish..
June 21, 2012
Rated 5 out of 5 by tcarracer7 798 ci hd
love it dont know how i got along with out it . easy to instal in my bass tracker came with everything needed.
May 14, 2012
I have an old basic H323 model and want to upgrade to the 798ci HD SI. The old one has a hull-thru transducer but does not read temperature. Would I have to replace the transducer with a new hull-thru and the cable back to the unit?
9 months ago
Top 500 Contributor
You will need to install the side imaging transducer on the transom in order to get side imaging. It comes with the 798.
I'm switching to Hummingbird after 4 years of no real fix with non-working GPS on my Lowrance 520C units. Factory has had me replace 8 GPS antenna modules then told me it was the units that were bad but they would not help as the units were now out of warranty. 30+ years of using Lowrance products and now they tell me too bad for you.
Side imaging will work on a pontoon boat as long as the transducer is mounted in a location on the back of the boat/pontoon that will not allow blockage to the left or the right. If anything, at the slower speeds you may need to trim the engine out so that it is out of the way while using the Side Imaging at the slower speeds. Thanks
Per Humminbird, with proper installation the digital depth and regular 2D sonar will work at high speeds. Otherwise, there is an option to add on a second transducer to the setup with a y-cable if needed to obtain the high speed readings if not possible with the included transducer. The transom transducer would be the XNT 9 20 and the y-cable would be the AS SI LR Y. Thanks