Choosing a depth finder and GPS gets easier once you match the screen, sonar, and mapping features to your kind of water. A compact 5-inch unit can suit a small console, while a 7-inch chartplotter feels far more relaxed on longer runs or in choppy conditions. You’ll see a mix of simple fishfinders and fuller chartplotter options below, so you can focus on what helps your boat day run smoothly instead of paying for extras you may never use.
Quick Look At The Shortlist
Humminbird Helix 5 Sonar G2
Garmin Striker 7SV with Transducer
Garmin Striker Vivid 7cv GT20-TM
Lowrance Elite FS Fishfinder/Chartplotter
Humminbird Helix 5 Chirp GPS G3
Garmin Striker Vivid 7sv
Lowrance HOOK Reveal 5 SplitShot
More Details On Our Top Picks
The Helix 5 Sonar G2 keeps the focus on sonar first, which suits anglers who want a clean display without a pile of extra menu paths. In a small console boat or a kayak rig with limited dash space, that simpler footprint can be a relief.
Compared with the Garmin picks later in this list, you’re looking at a more stripped-back tool rather than a mapping-heavy system. The honest read is that it works best for someone who wants depth and fish-finding basics handled clearly, not a do-everything screen.
Strong Points
- Sonar-first layout keeps everyday use simple.
- Five-inch size suits tighter helm spaces.
- Good fit for quick outings and day trips.
- Less menu clutter helps new users settle in faster.
Things To Consider
- You give up the broader mapping tools found on Garmin Striker models.
- A 5-inch display can feel modest on a larger console.
- Owners usually benefit from a careful mounting plan in cramped spaces.
Key Specs
Who It Suits Best
You’re a good match for this one if you want a straightforward sonar screen for a small boat, jon boat, or secondary station.
A Better Fit Elsewhere
Garmin Striker Vivid 7sv makes more sense for you if you want a larger display with SideVü and built-in GPS for longer route planning.
After the simpler Humminbird option, this Garmin feels much more like a full fishing station. The 7-inch display gives you room to read sonar and maps together, which helps on longer runs or in busy marinas.
Chirp, short for compressed high-intensity radar pulse, is Garmin’s sonar style here, and it matters because it can make returns easier to sort on-screen. ClearVü and SideVü add downward and side-looking views, so you get a wider sense of structure around the boat instead of a narrow line straight below it.
What We Like
- 7-inch screen gives you more breathing room for split views.
- SideVü and ClearVü help you read structure more confidently.
- Built-in Quickdraw Contours adds mapping flexibility for repeat trips.
- Well suited to anglers who want sonar and navigation in one unit.
Room For Improvement
- The fuller feature set can feel more involved than a basic fish finder.
- A larger screen usually asks for more dash space.
- Menu setup takes a little patience the first time around.
Feature Snapshot
Who Will Love This
You’ll get the most from this unit on a bass boat, center console, or weekend rig where sonar detail and mapping both matter.
Another Choice May Suit
Lowrance Elite FS Fishfinder/Chartplotter is a better match for you if you want a more chartplotter-style layout and are comfortable moving up a level in complexity.
This Garmin leans into ease of reading, and the vivid color palettes are the first thing many people notice. In a bright cockpit or on open water at midday, that cleaner color contrast can make the screen feel less fussy than a plain grayscale layout.
You also get built-in GPS, so route marking and position awareness are built into the setup rather than added later. Compared with the Striker 7SV, this model keeps things a little simpler by leaving out SideVü, which is a fair trade for anglers who want less to learn on day one.
Highlights
- Color palettes make the screen easier to scan at a glance.
- 7-inch format suits helms that can handle a mid-size display.
- Built-in GPS helps with waypoint use and basic navigation.
- GT20-TM transducer pairing keeps the package ready for installation.
Points To Note
- It gives you less side-scanning breadth than the Striker 7SV.
- Color customization helps, but the interface still takes a little familiarizing.
- Mounting and cable routing deserve some planning on smaller boats.
Details At A Glance
Made For
You’re the best fit for this unit if you want an easy-to-read 7-inch fishfinder that keeps GPS and sonar in one straightforward package.
Look Elsewhere When
Humminbird Helix 5 Chirp GPS G3 suits you better if you’d rather keep the screen smaller and stay with a more compact helm layout.
The Elite FS has a more chartplotter-like feel than the Garmin Striker units above, so it suits people who want their sonar and navigation to work together in a more advanced layout. That can be a real plus on bigger boats, especially once your trips start mixing local runs with unfamiliar water.
The standout here is Active Imaging 3-in-1, which combines CHIRP, SideScan, and DownScan, while FishReveal helps bring fish targets and bottom detail into one view. CHIRP uses a sweep of frequencies for broader return clarity, and SideScan and DownScan broaden what you can read around and beneath the hull.
Upsides
- More advanced layout feels closer to a true chartplotter system.
- Active Imaging 3-in-1 gives you a wide sonar toolkit.
- FishReveal helps combine target and structure information more cleanly.
- Useful for boaters who move between mapped and unmapped water.
Softer Spots
- The richer feature set asks for more time at the helm.
- Smaller boats may find the interface a bit more involved than needed.
- The product family’s with-or-without-transducer options require close attention before you choose.
Core Details
Right Fit For
You’re the right fit for this model if you want a more advanced fishfinder and chartplotter combo for serious weekend use or a larger boat.
Where A Sibling Pick Shines
Garmin Striker 7SV makes more sense for you if you want a simpler setup with strong sonar coverage and less menu depth to learn.
Among the 5-inch options, this one strikes a practical middle ground because it adds GPS without jumping into a bigger, more complex display. That matters for day boats and seasonal setups, where you want a clean install and enough function to cover routine trips.
Compared with the Helix 5 Sonar G2, you gain the route and waypoint layer that many casual anglers eventually want. The trade-off is still the same compact screen size, so the layout suits convenience more than expansive map viewing.
Positives
- GPS adds useful navigation support beyond plain sonar.
- Compact size fits small dashboards and simpler boats.
- Good balance for anglers who want more than basics.
- Helps you mark spots and return with less guesswork.
Areas To Watch
- Five inches leaves less room for split-screen viewing.
- It won’t feel as roomy as the 7-inch Garmin units.
- Smaller housings usually reward tidy cable management during install.
Quick Facts
Best Suited To
You’ll appreciate this most on a smaller boat where GPS support matters, but a compact display is still the better fit.
Swap It Out When
Garmin Striker Vivid 7cv makes more sense for you if a brighter 7-inch screen matters more than keeping the helm compact.
This is the more sonar-heavy Garmin in the group, and it suits you when side imaging matters as much as what sits below the hull. On larger aluminum boats or bass rigs, that broader view can make structure reading feel more complete.
Built-in GPS and Quickdraw Contours add navigation support and custom contour mapping, so you can sketch familiar water over time. Compared with the 7cv, this one gives you SideVü as well as a wider Wvga panel, so it’s the better choice for anglers who want more separation and breadth on screen.
Best Bits
- SideVü adds useful side-looking coverage around the boat.
- Wvga screen format gives the display a practical 7-inch presence.
- Quickdraw Contours helps you build maps for repeat fishing spots.
- GPS keeps route marking and position tracking built into the unit.
- Strong match for anglers who study structure closely.
Minor Gripes
- More sonar coverage also means more information to sort through.
- The broader feature set may feel busy for casual dock hopping.
- Setup time is worth planning, especially on a fresh install.
Technical Sheet
Whose Shelf It Belongs On
You’re the right match for this one if you want a 7-inch fishfinder that puts side-scanning detail high on the list.
Reach For A Different Pick When
Garmin Striker Vivid 7cv makes more sense for you if you want the same general family with a simpler sonar package and a lighter learning curve.
The HOOK Reveal 5 SplitShot is the small-helm option here, and its preloaded inland mapping makes it practical for lakes and familiar river systems. In tight consoles, the 5-inch size keeps things neat, though you do give up the larger working area found on the Garmin 7-inch units.
SplitShot combines sonar views in a package aimed at straightforward day use, so it makes sense for boaters who want navigation help without a sprawling screen. Think of it as the compact route-first choice, while the more advanced Lowrance Elite FS serves people who want a fuller chartplotter feel.
Plus Points
- Compact 5-inch format suits smaller dashboards well.
- Preloaded C-MAP US Inland mapping helps with lake and river use.
- SplitShot gives you a practical sonar package for routine outings.
- Lower visual clutter makes everyday operation easier to follow.
Worth Noting
- The smaller screen leaves less space for layered views.
- Heavier map and sonar use can feel cramped on busy screens.
- Smaller units reward careful placement so glare stays manageable.
Feature Rundown
Built With In Mind
You’re the best fit for this unit if you fish inland water from a small boat and want mapping in a compact package.
Skip It When
Lowrance Elite FS is the stronger choice for you if you want a more expansive chartplotter setup with room to grow.
How To Choose The Right Depth Finder And Gps
Screen Size And Layout Matter More Than You Think
A 5-inch screen keeps the helm tidy, and that works well on jon boats, kayaks with electronics mounts, or smaller consoles. A 7-inch display gives you room for split views, which becomes useful the moment you want sonar and maps visible at the same time.
Resolution and screen style matter too, but you should think about how much information your eyes can track while the boat is moving. Bright color palettes help in daylight, while a simpler layout can feel easier for first-time setup.
Sonar Style Shapes What You Can Actually Read
CHIRP means compressed high-intensity radar pulse, a sonar method that sends a range of frequencies for more detailed returns. Side-looking systems such as SideVü or SideScan help you read structure beside the boat, while down-looking views give a clearer picture straight beneath it.
That difference matters in real use. Shallow-water anglers, dock hoppers, and people working around brush piles often want side coverage, while casual lake use can be handled well by a simpler sonar package.
GPS And Mapping Decide How Confident You Feel
Built-in GPS helps with waypoint marking, route awareness, and keeping track of spots you want to revisit. Preloaded maps help even more on familiar inland water because you spend less time creating the basic layout from scratch.
Quickdraw-style contour building is useful for repeat trips on the same lake, especially after you learn a few productive edges and drops. For most weekend boaters, that is a bigger upgrade than a flashy screen feature.
Installation, Power, And Boat Fit
Small boats usually benefit from compact units with simple wiring and cleaner cable routing. Larger helms can handle more elaborate systems, but they also make clutter more obvious, so mounting position and glare control matter.
You should also match the transducer package to the hull and the way you fish. A ready-to-run bundle saves time, while a version sold without a transducer makes more sense for upgrades or replacement installs.
Things Worth Knowing First
Mistakes Worth Dodging
Many shoppers focus on screen size alone and forget to check sonar type. That usually leads to a unit that looks good on paper but feels thin on the water you actually fish.
Another common miss is ignoring what is included in the box. Some listings bundle a transducer, while others leave that choice to you, and that changes installation time in a big way.
The Upgrade Payoff
Higher-tier models usually cost more because they add wider sonar coverage, cleaner mapping tools, and screens that are easier to read in more conditions. You also tend to get more flexibility for split views and better room to grow into the unit.
That upgrade makes the most sense for anglers who spend real time on the water and want fewer compromises at the helm. For occasional trips on familiar lakes, a simpler model is often enough.
Frequently Asked Questions
What does a depth finder and GPS do on a boat?
It shows water depth and helps you keep track of your position. That combination makes it easier to mark spots and stay oriented on the water.
Is a 5-inch screen too small?
Not for a small boat or a simple setup. A 7-inch screen feels easier to use once you start comparing sonar and map views side by side.
What’s the difference between CHIRP and standard sonar?
CHIRP sends a range of frequencies, which can make returns easier to separate on screen. Standard sonar can still work well, but CHIRP often gives you a more informative picture.
Do you need built-in GPS for fishing?
You do not need it for every outing, but it helps with waypoint marking and navigation. It becomes more useful the more often you fish the same water.
Should you choose a unit with a transducer included?
A bundled transducer usually makes setup simpler. A no-transducer version fits better when you already have compatible hardware on the boat.
