Humminbird HELIX 12 CHIRP MEGA SI+ GPS G4N Fish Finder – 12″ Display, Side Imaging+ & GPS Chartplotter

The Humminbird HELIX 12 CHIRP MEGA SI+ GPS G4N is a top-of-the-line fish finder/chartplotter designed for serious anglers and larger vessels. With its impressive 12.1-inch display, this unit lets you view multiple panels at once – for example, you can keep an eye on the chart, 2D sonar, Side Imaging, and Down Imaging simultaneously – giving you a comprehensive understanding of what’s happening beneath and around your boat. Thanks to MEGA Side Imaging+ and Down Imaging+ technology, the Helix 12 reveals the underwater world with exceptional clarity and detail: you can distinguish bottom structures, schools of fish, and even the direction fish are moving. The Dual Spectrum CHIRP sonar complements these with broad coverage for search and high resolution for pinpoint targeting of fish and structure.

Navigation is another strong suit of the HELIX 12 G4N. Its built-in GPS and basemap help you navigate lakes and coastal waters, marking key points of interest – depth contours, hazards, buoys, marinas. If you need more detail, the unit supports optional high-definition maps (LakeMaster, CoastMaster, Navionics) so you can equip yourself with the best chart data available. Using AutoChart Live, you can even generate your own maps of uncharted waters or your secret fishing spots in real time as you drive the boat – an invaluable feature for finding fish-holding areas like humps, drop-offs, and vegetation beds that might not appear on standard maps.

As part of the fourth-generation HELIX G4N series, this model is ready for network integration. That means it can connect to a wide range of equipment: via Bluetooth you can get smartphone notifications on-screen or operate an optional remote control; via Ethernet you can link multiple Humminbird units or add accessories like the 360 Imaging sonar; and with NMEA 2000 you can monitor engine gauges, fuel data, autopilot, and more right from the fish finder’s display. The One-Boat Network ecosystem allows the HELIX 12 to seamlessly communicate with Minn Kota trolling motors (with i-Pilot Link) and shallow water anchors like Talon or Raptor, letting you control those devices from the Helix or synchronize waypoints and anchor positions — making your entire setup work in harmony.

It’s important to note that the HELIX 12 CHIRP MSI+ G4N comes with everything you need to get started right out of the box – including the high-performance XM 9 HW MSI T transom transducer for Mega Side/Down Imaging and Dual Spectrum CHIRP, all the mounting hardware and brackets, a power cable, and even a unit cover to protect the screen. This means you’re getting a complete package that can be installed at your boat’s console or helm immediately.

Recommended Uses and Advantages:

• Ideal for larger fishing boats and sport boats (5+ meters) where the big 12″ display provides excellent sunlight visibility and allows multiple split-screen views – perfect for captains who want to monitor sonar, charts, and other data all at once
• A top choice for experienced anglers and guides who demand the very best equipment: the HELIX 12 G4N aids in tournament scenarios and professional fishing, giving you a competitive edge through its precise imaging and reliable performance
• Integrates excellently into complex onboard systems – for example, if you have a Minn Kota trolling motor with i-Pilot Link or a Talon shallow-water anchor, this unit will communicate with them, enabling control and feedback right from the fish finder screen
• Suitable for deep-water and offshore fishing, thanks to its powerful CHIRP sonar (with optional transducers reaching depths of 1000+ meters) and saltwater-resistant design. At the same time, the detailed Down and Side Imaging views make it invaluable for shallow-water anglers (bass, pike, etc.), revealing fish hidden in cover and structure
• An outstanding tool for navigation and safety: the large screen makes it easy to follow marine charts, routes, and tracks. Add a radar via Ethernet and you’ll have a complete picture of surrounding vessels and obstacles for night-time or foggy conditions, enhancing safe navigation