Humminbird HELIX 7 CHIRP MEGA DI Fishfinder/Chartplotter GPS G4N
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Humminbird HELIX 7 CHIRP MEGA DI G4N is a complete fishfinder and chartplotter combo built for anglers who want high-definition sonar, reliable mapping, and full boat network integration in a compact 7" display. This listing includes the control head and transducer — everything you need to get on the water.
Dual Spectrum CHIRP Sonar
The included Low-Q CHIRP transducer powers Dual Spectrum CHIRP sonar, delivering exceptional target separation, crisp fish arches, and clear bottom definition across a wide range of water conditions and depths.
MEGA Down Imaging
MEGA DI uses ultra-high-frequency sonar to produce near-photographic images of structure, cover, and fish directly below your boat — down to 125 ft / 38 m. See what's down there, not just that something is there.
Built-In Basemap + AutoChart Live
The included Humminbird Basemap covers 10,000+ lakes and U.S. coastal waters with buoys, hazards, marinas, and depth contours. AutoChart Live lets you build real-time depth maps of your favourite spots as you fish, recording bottom hardness and vegetation with up to 8 hours of onboard storage.
Chart Compatibility
Supports LakeMaster, LakeMaster Plus, SmartStrike, CoastMaster, and Navionics charts — giving you the flexibility to upgrade your mapping as your fishing takes you further afield.
One-Boat Network Ready
Connect via Ethernet and Bluetooth to integrate with compatible Minn Kota trolling motors, shallow water anchors, and Cannon downriggers. NMEA 2000® and built-in Wi-Fi round out the connectivity suite for engine gauges, fuel data, and wireless software updates via the Humminbird FishSmart™ App.
Keypad Control
A tactile keypad and intuitive soft-key menu system make it easy to navigate charts, switch sonar views, and adjust settings on the water — even with gloves on.
Parts Desk Insights
- Best Use Case: The ideal all-in-one solution for anglers setting up a new fishfinder installation or replacing an older unit. Includes a compatible transducer so you can install and fish without sourcing additional sonar hardware. Best suited for freshwater fishing with occasional coastal use.
- Complete Bundle: Unlike the HELIX 7 CHIRP MEGA DI Control Head Only, this package includes the transducer — no additional sonar hardware required for a standard installation.
- MEGA SI Note: MEGA Side Imaging reads to 200 ft / 60 m on both sides. MEGA Imaging 360 is not compatible with HELIX 7 MEGA DI models. If Side Imaging is a priority, consider the HELIX 7 CHIRP MEGA SI G4N.
- Related Models: Also available as the HELIX 7 G4 DI CHIRP for a comparable Down Imaging option, or the HELIX 7 G4 SI CHIRP for Down and Side Imaging combined.
- Chart Cards: LakeMaster, CoastMaster, and Navionics cards are sold separately and inserted via the SD card slot.
- Network Note: Full One-Boat Network functionality requires compatible Minn Kota, Cannon, or Humminbird accessories — sold separately.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.