Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Humminbird › Sea Navigation
Humminbird
Humminbird Helix 7 CHIRP Mega DI GPS G4

Humminbird Helix 7 CHIRP Mega DI GPS G4

Best price now

$578.62at WalmartChecked Nov 9

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $578.62 at Walmart on Nov 9.
  • Checked at 2 stores.

Our take on the Humminbird Helix 7 CHIRP Mega DI GPS G4

The Helix 7 CHIRP Mega DI GPS G4 is a 7-inch fish finder and chartplotter for boats. It combines CHIRP sonar, MEGA Down Imaging and a built-in 10 Hz GPS on a 1024x600 color screen. It suits anglers who want down imaging and navigation in one unit without stepping up to a larger Helix. Against rivals it stands out for MEGA DI detail and Humminbird's mapping ecosystem, but it has no side imaging and only one microSD slot.

Best forFreshwater and inshore anglersSmall boats and kayaks with room for a 7-inch unitBuyers who want down imaging plus GPS in one displayHumminbird users adding a second station
Pros
  • MEGA Down Imaging shows structure and fish clearly
  • CHIRP sonar gives good target separation
  • Built-in 10 Hz GPS is accurate enough for trolling and marking spots
  • 1024x600 screen is sharp for the size
  • Stores 2,500 waypoints and 47 routes
  • Works with Humminbird's LakeMaster and CoastMaster charts
Cons
  • No side imaging; that needs the SI model
  • Only one microSD slot, so chart and recording cards compete
  • Down imaging performance drops in very deep or rough water
  • Screen can wash out in direct sun without shading
  • Sonar and mapping features take time to learn

Humminbird Helix 7 CHIRP Mega DI GPS G4 prices at every store

  • WalmartNew

    In stock

    $578.62Free shippingChecked Nov 9
    Visit Walmart
  • CampingworldNew

    In stock

    $699.99Checked Nov 9
    Visit Campingworld

Store links may earn us a commission. Some prices via Klarna.

Humminbird Helix 7 CHIRP Mega DI GPS G4 price history

Lowest price we've seen: $578.62 on Nov 9 at Walmart. Tracked across 2 stores since Nov 9.

What reviewers say

Owners rate the Helix 7 G4 as a solid, readable unit with strong down imaging for the money. Complaints center on the single card slot and the learning curve for menus and mapping.

What people mention
  • Down imagingPraisedOwners say MEGA DI shows brush, rock and fish with good clarity in shallow to mid depths.
  • ScreenPraisedReviewers call the 1024x600 display sharp and easy to read, though some note glare in direct sun.
  • GPSPraisedUsers report the built-in GPS locks quickly and holds position well for trolling and waypoint runs.
  • Card slotCriticisedThe single microSD slot forces a choice between a chart card and sonar recording.
  • MenusMixedSome owners find the menu system deep and slow to learn at first.
  • Deep waterCriticisedDown imaging detail drops off in deep or choppy water, according to some users.

Specifications

Waypoints
2500Source
Screen Resolution
1024x600Source
Navigation
Marine GPS, SonarSource
Screen
Color DisplaySource

Questions and answers

Does it have side imaging?
No. This is the DI model with MEGA Down Imaging only. Side imaging requires the Helix 7 CHIRP MEGA SI GPS G4.
Can I use LakeMaster or CoastMaster charts?
Yes. It accepts Humminbird chart cards through the microSD slot, along with Navionics-compatible mapping where supported.
How deep does the sonar read?
Humminbird rates it to about 400 ft in saltwater, depending on transducer and conditions. Down imaging detail is best in shallower water.
Is the GPS antenna built in?
Yes. The 10 Hz GPS receiver is internal, so no external antenna puck is needed.
What comes in the box?
The head unit, transducer, power cable, mounting bracket and hardware. Check the listing for the exact transducer included.
Is it worth it over the Helix 5?
The 7-inch screen and MEGA DI give noticeably more detail and easier split-screen viewing than the Helix 5, which suits anglers who use imaging often.
Where is the Humminbird Helix 7 CHIRP Mega DI GPS G4 cheapest?
At Walmart, for $578.62, as of our latest check.
Where can I buy the Humminbird Helix 7 CHIRP Mega DI GPS G4?
2 stores we checked sell it, including Walmart, Campingworld.

Stores we've priced the Humminbird Helix 7 CHIRP Mega DI GPS G4 at

  • Walmart deals and prices

More from Humminbird

  • H
    Humminbird Helix 5 Chirp/GPS Combo G3
    Humminbird Helix 5 Chirp/GPS Combo G3
  • H
    Humminbird APEX 19 VX MSI+ Chartplotter/Fishfinder with Transducer
    Humminbird APEX 19 VX MSI+ Chartplotter/Fishfinder with Transducer
  • H
    Humminbird HELIX 5 CHIRP GPS G3
    Humminbird HELIX 5 CHIRP GPS G3
  • H
    Humminbird HELIX 7 CHIRP MEGA SI GPS G4
    Humminbird HELIX 7 CHIRP MEGA SI GPS G4
  • H
    Humminbird XPLORE 9
    Humminbird XPLORE 9
  • H
    Humminbird HELIX 7 CHIRP MEGA SI GPS G4N
    Humminbird HELIX 7 CHIRP MEGA SI GPS G4N
  • H
    Humminbird PiranhaMAX 4 DI Fish Finder
    Humminbird PiranhaMAX 4 DI Fish Finder
  • H
    Humminbird XPLORE 9 CMSI+ Fish Finder
    Humminbird XPLORE 9 CMSI+ Fish Finder
All Humminbird deals and products →

More fish finder chartplotters

  • S
    Simrad GO9 XSE 9" Plotter with HDI Transducer and C-MAP Discover
    Simrad GO9 XSE 9" Plotter with HDI Transducer and C-MAP Discover
  • G
    Garmin 106sv
    Garmin 106sv
  • L
    Lowrance HDS PRO Fish Finder Chartplotter
    Lowrance HDS PRO Fish Finder Chartplotter
  • G
    Garmin GPSMAP 8616xsv Combo GPS/Fishfinder GN+
    Garmin GPSMAP 8616xsv Combo GPS/Fishfinder GN+
  • S
    Simrad Cruise 9
    Simrad Cruise 9
  • L
    Lowrance Elite FS 9
    Lowrance Elite FS 9
  • G
    Garmin ECHOMAP UHD2 73sv
    Garmin ECHOMAP UHD2 73sv
  • G
    Garmin ECHOMAP UHD2 93sv Chartplotter with GT56 Transducer
    Garmin ECHOMAP UHD2 93sv Chartplotter with GT56 Transducer
Memory Card Slots
1Source
Depth Saltwater (max) (ft)
400.0Source
Routes
47Source
Type of Memory Card
microSDSource
GPS Precision (Hz)
10Source
GPS Antenna
Built inSource