Humminbird Helix 9 CHIRP Mega SI+ GPS G4N Fish Finder – 9" Display, MEGA Imaging+ & Network Sonar

The Helix 9 CHIRP Mega SI+ GPS G4N combines many flagship features in a convenient 9-inch package suitable for a variety of boats. Its 9-inch HD display offers bright colors and high resolution, which means you'll see every detail clearly whether you're viewing sonar returns or your charts. With MEGA Side Imaging+ and MEGA Down Imaging+, the Helix 9 reveals a rich underwater world – able to look out as far as 400 feet side-to-side (at 455 kHz) and down to 200 feet (with MEGA DI+), you'll spot fish even when they're far off to the side of your boat. The enhanced resolution of the "+" imaging ensures that structures like trees, rocks, or wreckage are clearly delineated on screen. The Dual Spectrum CHIRP 2D sonar rounds out the picture by providing reliable traditional sonar readings, with depth capability up to 1200 feet (365 m) using the standard transducer – perfect for tracking fish movement beneath the boat and understanding bottom contours.

As a G4N network model, the Helix 9 offers robust connectivity options. Through its Ethernet port, you can link it with other Helix or SOLIX units on board to share data in real time – for example, you could view on the 9-inch screen the sonar feed from a bow-mounted transducer, or sync your saved waypoints across all networked units. Bluetooth connectivity enables integration with accessories like a wireless remote, or it can display notifications from your smartphone. The Helix 9 also supports NMEA 2000 (with an optional adapter), allowing you to see engine metrics or other sensor data from your boat directly on the fish finder display.

In terms of navigation, the Helix 9 CHIRP MSI+ G4N is fully loaded – the internal GPS is fast and accurate, and the included Basemap provides key details of waterways. For localized detail, you can rely on LakeMaster charts (where available) or worldwide Navionics charts, which the unit can read seamlessly. The AutoChart Live function is on board as well, letting you record up to 8 hours of your own depth contour data. If you need more, just pop in a Zero Line card and map as long as you want.

Like other Helix models, the interface is straightforward and user-friendly. With the customizable preset buttons, you can set up your preferred views (e.g., full-screen sonar, or sonar+chart, or even a three-panel view) and switch between them with a single press. The SwitchFire feature gives you control over how the 2D sonar returns appear – you can turn on maximum detail or filter out clutter as needed. The Helix 9 comes with a mounting bracket, XM 9 HW MSI T transducer (supporting MEGA SI+ and DI+ frequencies), a power cable, and more – everything you need to get up and running quickly. Its rugged, waterproof housing ensures it stands up to the elements, and upgradeable software means you'll always have access to Humminbird's latest enhancements.

• Ideal for medium to large boats (16–26 ft) often used for freshwater predator fishing or nearshore saltwater angling
• A great choice for high-tech sonar without a 15-inch screen – the Helix 9 strikes a balance between size and functionality
• Invaluable when fishing for bass, pike, catfish, etc. in cover-rich or structured waters – Side Imaging helps locate fish hiding in cover
• Suitable for avid anglers and tournament competitors looking to build an integrated network on board – e.g., bow and console units working in sync