Humminbird Helix 15 CHIRP Mega SI+ GPS G4N – 15.4" Fish Finder with MEGA Imaging+ & Network Connectivity

The Helix 15 CHIRP Mega SI+ GPS G4N stands at the pinnacle of the Helix series, built for the most demanding anglers and larger vessels. With its impressive 15.4-inch Full HD display, this unit gives you a panoramic view of everything beneath and around your boat. MEGA Side Imaging+ and MEGA Down Imaging+ sonar provide an unprecedented look at your environment – you'll clearly distinguish fish and bottom structure at ranges up to 200 feet on either side and below your boat. The “+” designation means you get roughly 20% more detail and 60% more range compared to standard MEGA Imaging, ensuring nothing underwater escapes your view. Of course, Dual Spectrum CHIRP sonar is also at your disposal – continuously scanning the water column with wide and narrow beams, it provides exhaustive information whether you're surveying broad areas or focusing on specific targets.

As a full-featured G4N (4th Generation Network) model, the Helix 15 comes equipped for integration into your onboard network. Built-in Ethernet and Bluetooth modules, as well as support for NMEA 2000 networking, allow this unit to synchronize with a host of other devices. You can connect multiple Humminbird units to share waypoints and sonar data, or even control your Minn Kota i-Pilot Link trolling motor directly from the sonar’s screen. Humminbird’s One-Boat Network ecosystem – linking Humminbird fish finders, Minn Kota trolling motors, and Cannon downriggers – unlocks a new level of coordinated functionality, from automatic position holding to following depth contours, all accessible at your fingertips on the Helix 15.

Navigation features on the Helix 15 are equally top-tier. The internal GPS receiver is extremely accurate and, combined with the Humminbird Basemap, provides you with detailed chart data including shorelines, buoys, markers, and over 10,000 inland water bodies. For even more detail, you have the option to use premium charting – whether Humminbird’s own LakeMaster® and CoastMaster™ series or Navionics® charts – so you’ll always have the best insight into the waters you fish. And with AutoChart Live, you can create maps of uncharted waters on the fly: the unit has 8 hours of built-in recording time and supports AutoChart Zero Line SD cards for virtually endless mapping capacity.

Despite its extensive capabilities, the Helix 15 remains user-friendly. The classic keypad controls give you tactile feedback and quick command over the system, including programmable view preset keys – for instance, you can switch from a full-screen sonar view to a split-screen chart/sonar view at the touch of a button. Thanks to built-in Wi-Fi, software updates can be downloaded wirelessly via the Humminbird FishSmart app, and you can even receive smartphone notifications on your fish finder display. The Helix 15 CHIRP MSI+ G4N is offered in a “Control Head Only” configuration for certain packages, meaning you can choose a specific transducer or use an existing one; however, standard bundles include all necessary accessories – transom-mount transducer, screen cover, power cables, and mounting brackets. With a two-year limited warranty and Humminbird’s renowned build quality, this fish finder is an investment that can truly elevate your fishing to a professional level.

• Recommended for large boats and cabin cruisers (20+ ft) where console space allows a big display and maximum functionality is required
• Ideal for offshore fishing and deep-water reservoirs – open ocean or great lakes – where the extended range of MEGA Imaging+ is invaluable for finding fish and structure
• Perfect for fishing guides and professional anglers running complex setups – integrates with autopilots, shallow water anchors (Talon/Raptor), and more for optimal coordination of boat control and sonar data
• Invaluable for top-tier tournament fishing, where detailed sonar information and sharing data among team members can make the difference in competitive outcomes