Humminbird Helix 7 CHIRP MEGA SI GPS G4N Fish Finder & Chartplotter (4119401)

Helix 7 CHIRP MEGA SI G4N — Side Imaging, Charting & Networking in a 7" Package

The Humminbird Helix 7 CHIRP MEGA SI GPS G4N is a fully featured fish finder, chartplotter, and GPS unit built for freshwater and coastal anglers who want MEGA Side Imaging, precise CHIRP sonar, and full chart compatibility in a compact 7-inch display. With built-in Wi-Fi, NMEA 2000®, Ethernet, and Bluetooth, it’s the hub of a connected boat — ready to integrate with trolling motors, downriggers, and the full One-Boat Network® ecosystem.

Sonar Performance

• Dual Spectrum CHIRP Sonar — A powerful Low-Q CHIRP transducer delivers crystal-clear returns, exceptional target separation, and well-defined fish arches. Dual Spectrum mode lets you switch between wide coverage and narrow precision with a single button press.
• MEGA Side Imaging™ — Scans up to 200’ (60m) on each side of the boat with remarkable detail, revealing structure, cover, and fish that traditional sonar misses entirely.
• MEGA Down Imaging™ — Photo-like sonar view directly below the boat to depths of 125’ (38m), making it easy to identify bottom composition, structure, and suspended fish.

Charts & Navigation

• Humminbird Basemap Built-In — Pre-loaded with buoys, day markers, hazards, marinas, depth contours, and coverage for 10,000+ lakes plus U.S. coastal waters. Ready to navigate right out of the box.
• AutoChart Live™ — Create real-time custom depth maps of your fishing spots as you drive, with up to 8 hours of built-in recording. Includes access to patented LakeMaster® features including bottom hardness and vegetation mapping.
• LakeMaster® Compatible — Upgrade to Humminbird’s premium freshwater charts with unrivaled contour accuracy, depth highlight ranges, water level offset, and SmartStrike™ predictive fish search.
• CoastMaster™ Compatible — Full U.S. coastal chart coverage for East, West, and Gulf coast waters on a single card — built for saltwater captains who need accurate inshore and offshore navigation.
• Navionics® Compatible — Additional chart flexibility with support for Navionics chart cards.

Connectivity & Control

• One-Boat Network® — Connects via Ethernet and Bluetooth to Minn Kota i-Pilot Link™ trolling motors, Talon and Raptor shallow water anchors, and Cannon downriggers. Control your entire boat from the Helix 7 display.
• NMEA 2000® — Integrates with your vessel’s NMEA 2000 backbone for engine gauges, fuel data, and connected accessories.
• Built-In Wi-Fi — Wireless software updates and connectivity via the Humminbird FishSmart™ app.
• Keypad Control — Intuitive soft-key menu system for reliable operation in any conditions — gloves, rain, or direct sunlight.

Best Use Case

The Helix 7 CHIRP MEGA SI G4N is the ideal choice for freshwater anglers who want MEGA Side Imaging and full chartplotter capability in a 7-inch display — particularly those fishing larger lakes, reservoirs, or river systems where scanning wide areas of structure is critical. It’s a strong fit for bass, walleye, and muskie anglers who want to cover water efficiently and build custom maps of their spots with AutoChart Live. The G4N designation means full networking — this unit is One-Boat Network ready and can be paired with a Minn Kota i-Pilot Link motor for integrated boat control.

Related Products

• Humminbird Helix 7 CHIRP MEGA DI GPS G4N — Same platform with Down Imaging only — no Side Imaging.
• Humminbird Helix 7 CHIRP MEGA DI GPS G4N — Control Head Only — Head-only option if you already have a compatible transducer.
• Humminbird MEGA Live 2 Live Sonar System — Add live sonar capability to your Helix 7 G4N setup.
• Humminbird MEGA Live TargetLock Adapter Kit — Ultrex 60" — Lock your MEGA Live sonar beam independently from your trolling motor.
• Humminbird NMEA 2000 GPS Heading Sensor — Add heading data for MEGA Live Sweep and advanced navigation features.
• Humminbird Ethernet Switch — Expand your One-Boat Network® connections.

Parts Desk Insights

Best Use Case: The Helix 7 MEGA SI G4N is the best recommendation for anglers who want Side Imaging in the Helix 7 form factor and plan to network the unit with a Minn Kota i-Pilot Link trolling motor or other One-Boat Network accessories. The “G4N” designation is the key differentiator — it means full networking capability (Ethernet + Bluetooth). Customers who don’t need Side Imaging can save money with the Helix 7 MEGA DI G4N. Customers who want live sonar should be pointed toward adding the MEGA Live 2 to their setup.

What to Know Before You Buy: MEGA Imaging 360 is not compatible with the Helix 7 — customers asking about 360 imaging should be directed to the Helix 9 or larger. MEGA SI reads to 200’ (60m) on each side; MEGA DI reads to 125’ (38m). AutoChart Live requires a microSD card for recording beyond the built-in 8-hour capacity. LakeMaster, CoastMaster, and Navionics charts are sold separately. Transducer is included with this listing.

SKU: 137-4119401 | Barcode: 082324058172