Humminbird HELIX 7 CHIRP MEGA SI GPS G3N
Humminbird HELIX G3N · Fish Finders & Chartplotters legacy
No longer sold new. Humminbird HELIX G3N is a legacy line; any price shown is the last one recorded. Current equivalents are listed below.
Price not recorded yet
No direct product link on file for this one yet — this runs a search.
SonarMatch earns a commission on some purchases made through links on this page. It costs you nothing, and it never changes what we list or how we rank it. As an Amazon Associate, SonarMatch earns from qualifying purchases.
No current live sonar system lists it. Trolling motors it can steer: Minn Kota Ultrex QUEST (with an adapter), Minn Kota Ultrex (with an adapter), Minn Kota Ulterra QUEST (with an adapter), Minn Kota Ulterra (with an adapter) and Minn Kota Terrova QUEST (with an adapter). Humminbird HELIX 7 CHIRP MEGA SI GPS G3N is a fish finder from Humminbird HELIX G3N. It has a 7 in screen, has built-in CHIRP, Down imaging, Side imaging sonar, and has 1 marine network port. It is no longer sold new.
Live sonar that work with the HELIX 7 CHIRP MEGA SI GPS G3N
| Live sonar | Shows on this unit |
|---|---|
| Humminbird MEGA Live 2 | No humminbird-help.johnsonoutdoors.com |
| Humminbird MEGA Live legacy | No Not a MEGA SI or MEGA DI model, or outside the listed sizes (G3N 8-12, G4N 7-15). humminbird-help.johnsonoutdoors.com |
11 from other brands do not work with it
Lowrance ActiveTarget, Lowrance ActiveTarget 2, Lowrance Eagle Eye transducer, Garmin LiveScope 2, Garmin LiveScope 2 HD, Garmin LiveScope XR, Garmin Panoptix PS51-TH, Garmin Panoptix PS70, Garmin LiveScope Plus, Garmin Panoptix PS22-TR, Garmin Panoptix PS31. Each brand lists only its own units; open any of them for its source.
Trolling motors that work with the HELIX 7 CHIRP MEGA SI GPS G3N
| Trolling motors | Its sonar on this unit | Steered from this unit |
|---|---|---|
| Minn Kota Fortrex | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | Not published |
| Minn Kota PowerDrive | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Riptide Instinct QUEST | Not published | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Riptide PowerDrive | Not published | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Riptide Terrova | Not published | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Riptide Terrova QUEST | Not published | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Terrova | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in MEGA Down Imaging, Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Terrova QUEST | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in MEGA Down Imaging, Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Ulterra | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in MEGA Down Imaging, Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Ulterra QUEST | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in MEGA Down Imaging, Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Ultrex | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in MEGA Down Imaging, Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
| Minn Kota Ultrex QUEST | With adapter Needs a Humminbird HELIX adapter cable (MKR-MI-1 for Dual Spectrum CHIRP). Built-in MEGA Down Imaging, Dual Spectrum CHIRP, on motors that have that sonar built in. Listed in Minn Kota's tables for this model. All compatible HELIX models will require an adapter to connect (Minn Kota Built-in MEGA Imaging Compatibility). minnkota-help.johnsonoutdoors.com | With adapter Needs AS EC QDE Ethernet adapter. Advanced GPS Navigation motors (2023 and newer). humminbird-help.johnsonoutdoors.com |
9 from other brands do not work with it
Lowrance Ghost, Lowrance Ghost X, Lowrance Recon Freshwater, Lowrance Recon Saltwater, MotorGuide Xi3, MotorGuide Xi5, Garmin Force Kraken, Garmin Force Pro, Garmin Force. Each brand lists only its own units; open any of them for its source.
360 imaging and transducers that work with the HELIX 7 CHIRP MEGA SI GPS G3N
| 360 imaging and transducers | Shows on this unit |
|---|---|
| Humminbird MEGA 360 Imaging | No Not on the article's list of compatible HELIX models. humminbird-help.johnsonoutdoors.com |
Adapters and modules that work with the HELIX 7 CHIRP MEGA SI GPS G3N
| Adapters and modules | Shows on this unit |
|---|---|
| Humminbird AS EC QDE Ethernet Adapter Cable | Works humminbird-help.johnsonoutdoors.com |
No* An asterisk marks an answer worked out from a brand's own list (the unit is missing from it) rather than stated outright. "Not published" means no brand source we have read answers it. How we decide.
Every add-on for the HELIX 7 CHIRP MEGA SI GPS G3N, with prices, on one screen
| Category | Fish Finders & Chartplotters |
|---|---|
| Part number | — |
| Screen size | 7 injohnsonoutdoors.widen.net |
| Screen resolution | 800 x 480johnsonoutdoors.widen.net |
| Built-in sonar ? | CHIRP, Down imaging, Side imagingminnkota-help.johnsonoutdoors.com * |
| Marine network (Ethernet) ports ? | 1johnsonoutdoors.widen.net * |
| NMEA 2000 ? | nojohnsonoutdoors.widen.net * |
| Sold as | Single product |
| Availability | No longer sold new |
Where this came from
inferred Read from brand or store pages, but at least one value rests on a search result, a figure worked out from the source's own numbers, or a product with no part number to pin it to. Last verified 2026-11-01. What the labels mean.
What to buy instead
Same category, different brand. Open any of them side by side with this fish finder, or tick several to compare up to four.
| Logo | Brand | Product | Category | Photo | Price |
|---|---|---|---|---|---|
| Garmin | ECHOMAP UHD2 5" cv Garmin ECHOMAP UHD2 Side by side → | Fish Finders & Chartplotters | $499.99 | ||
| Garmin | ECHOMAP UHD2 6" sv Garmin ECHOMAP UHD2 Side by side → | Fish Finders & Chartplotters | $849.99 | ||
| Garmin | ECHOMAP UHD2 7" cv Garmin ECHOMAP UHD2 Side by side → | Fish Finders & Chartplotters | $699.99 | ||
| Garmin | ECHOMAP UHD2 7" sv Garmin ECHOMAP UHD2 Side by side → | Fish Finders & Chartplotters | $999.99 | ||
| Garmin | ECHOMAP UHD2 9" sv Garmin ECHOMAP UHD2 Side by side → | Fish Finders & Chartplotters | $1,399.99 | ||
| Garmin | ECHOMAP Ultra 2 10" Garmin ECHOMAP Ultra 2 Side by side → | Fish Finders & Chartplotters | $2,099.99 | ||
| Garmin | ECHOMAP Ultra 2 12" Garmin ECHOMAP Ultra 2 Side by side → | Fish Finders & Chartplotters | $2,899.99 | ||
| Garmin | ECHOMAP Ultra 2 16" Garmin ECHOMAP Ultra 2 Side by side → | Fish Finders & Chartplotters | $4,799.99 |
