Humminbird Helix 7 CHIRP SI GPS G4 – 7" Fish Finder with Side Imaging, Down Imaging & GPS

Humminbird Helix 7 CHIRP SI GPS G4 is an extremely versatile fish finder that offers both side-scanning and down-looking sonar combined with modern connectivity options. This model provides Side Imaging sonar (side scan) and Down Imaging (down scan) on CHIRP frequencies, which significantly enhances image detail compared to standard models. While it doesn’t operate on the MEGA frequencies, the Side Imaging still covers an impressive distance – up to ~400 ft side-to-side – allowing you to survey both sides of your boat for fish and structure. Down Imaging gives you a clear view down to ~400 ft below the boat (at 455 kHz), which is plenty for most conditions.

In addition, the Helix 7 SI G4 features Dual Spectrum CHIRP 2D sonar, meaning you’ll get excellent 2D coverage with selectable Wide and Narrow modes. This ensures that whether you’re seeking a broad overview or focusing on subtle details, the sonar can be tuned to your preference. The maximum depth for the 2D sonar is about 1200 ft with the standard transducer, so you have the range needed even for deeper waters.

One of the great strengths of this G4 model is networking capability. The Helix 7 CHIRP SI GPS G4 comes equipped with an Ethernet port and Bluetooth. That means you can connect it to other compatible Humminbird devices – for example, another Helix on board – and share data such as waypoints, routes, or even sonar readings. You can also integrate it with a Minn Kota i-Pilot Link trolling motor or Talon anchor as part of Humminbird’s One-Boat Network. The presence of NMEA 2000 support (with an optional adapter) allows you to output engine data and other onboard sensor information to the fish finder’s display – an uncommon advantage for a unit of this size and class.

The GPS functionality is fully integrated: the built-in high-sensitivity GPS, combined with Humminbird’s Basemap, lets you navigate confidently and mark important spots. The Basemap includes shoreline outlines, navigational aids, and basic info for numerous water bodies. You have the option to use additional charts as well – for example, Navionics maps, which the Helix 7 G4 can read directly from the microSD slot. AutoChart Live is also available, allowing you to record up to 8 hours of your own depth contour data. Add a Zero Line card and you can practically map indefinitely.

With the 7-inch display you can comfortably view two or three panels at once – for instance, Side Imaging on one side, 2D sonar on the other, and even a map in a corner, thanks to the high resolution. The controls are the familiar easy Helix interface: straightforward via buttons with quick menus (X-Press system). The unit comes with all necessary mounting hardware: an XNT 9 HW SI T transducer (supporting Side/Down Imaging and Dual Spectrum) for transom mounting, a bracket, and power cable. With its solid build and 2-year warranty, the Helix 7 CHIRP SI GPS G4 will be a reliable aide on your fishing adventures.

• Ideal for 16–23 ft boats whose owners want side-scan capabilities without moving to higher-end units – the Helix 7 SI gives pro-level views in a mid-range package
• Very useful when fishing shallow flats and shorelines – Side Imaging helps spot fish schools or cover near the bank or under the boat
• Recommended for serious enthusiasts and team fishing – the networking means you can have multiple units onboard working together, or use the fish finder with a smart trolling motor
• Great for various fishing styles (casting, trolling, jigging) in fresh or saltwater – the combination of CHIRP 2D and Imaging sonars provides a complete picture of the underwater world