Humminbird Helix 7 CHIRP SI GPS G4 vs Humminbird Helix 7 MEGA SI GPS G4

Last updated: November 2, 2026

The Humminbird Helix 7 CHIRP SI GPS G4 is the better fish finder overall, rated 3.6 to 3.4. The Humminbird Helix 7 CHIRP SI GPS G4 leads on value. The Humminbird Helix 7 CHIRP SI GPS G4 costs $126.58 less ($523.40 vs $649.98).

Humminbird Helix 7 CHIRP SI GPS G4 vs Humminbird Helix 7 MEGA SI GPS G4

Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every up to 7 in fish finder; a clear win is highlighted. How we rank explains each one.

Factor weightHumminbird Helix 7 CHIRP SI GPS G4Humminbird Helix 7 MEGA SI GPS G4
Overall rating3.6/53.4/5
Value 30%43 $74.77 per inch of screen ($523.40, 7 in)30 $92.85 per inch of screen ($649.98, 7 in)
Sonar 25%100 CHIRP, down imaging, side imaging100 CHIRP, down imaging, side imaging
GPS and maps 15%100 GPS with preloaded maps100 GPS with preloaded maps
Screen 10%58 1024 x 600, 170 pixels per inch58 1024 x 600, 170 pixels per inch
Warranty 20%0 1-year warranty0 1-year warranty

Specifications

Humminbird Helix 7 CHIRP SI GPS G4Humminbird Helix 7 MEGA SI GPS G4
Display
Screen7 in7 in
Resolution1024 x 6001024 x 600
Pixels per inch170170
TouchscreenNoNo
Sonar
CHIRPYesYes
Down imagingYesYes
Side imagingYesYes
Live sonar readyNoNo
Maximum depth1,200 ft1,200 ft
TransducerXNT 9 HW SI TXNT 9 HW MSI 150 T
Navigation and build
GPSYesYes
MapsPreloadedPreloaded
Phone pairingNoNo
NetworkingNoNo
Warranty1 year1 year
Released2021-092021-09

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