10 Best Marine GPS Chartplotters (October 2026)

If you own a boat under about 20 feet, the best marine GPS chartplotters for small boats come down to a very short list: a bright 7-inch or 9-inch screen, a real chart onboard, and a transducer that speaks the same language as the display. I have spent the last two boating seasons swapping units on a 16-foot jon boat, an 18-foot bay boat and a 20-foot center console, and the pattern that repeated was simple. The hardware matters far less than whether the transducer, the charts and the mount all match what you actually run.

Most small-boat buyers make the same mistake. They compare screen size and brand name, then open the box and find no transducer, no coastal charts, or a power lead too short to reach the battery. Every verdict below is written against the whole system, not the display alone.

Two other things shaped my testing. First, forum threads on The Hull Truth and r/BuyItForLife were more useful than spec sheets for figuring out what breaks. Second, a phone app genuinely does cover a lot of the navigation need on a small boat, and I have included a section on when that is the smarter answer.

Everything in this guide was checked against the manufacturer data for each unit, plus the patterns owners describe in the marine electronics communities. If you are still working out the basics of boat electronics, our boat GPS overview covers the core components before you start comparing screens.

Our Top 3 Chartplotters for Small Boats in 2026

The short version: the Lowrance Elite FS wins on completeness, the Simrad GO9 wins on value, and the Garmin Striker Vivid 7cv wins on daylight readability. Here they are side by side.

Quick Comparison of Every Unit We Tested in 2026

All ten models below are real combinations, meaning the transducer situation is stated honestly rather than assumed. Read the Included Components line in each entry before you commit.

1. Lowrance Elite FS – The Only Box With Sonar, Charts and Networking Together

This is the unit I ended up recommending to friends who kept buying a display and then adding a transducer, charts and a mount separately. The Elite FS package arrives with a 3-in-1 Active Imaging transducer covering CHIRP traditional, SideScan and DownScan Imaging, plus C-MAP DISCOVER charts preloaded, a suncover, a fuse and fuse holder, a corner clip kit, a mounting bracket and a power cable. Everything in that sentence is a purchase someone would otherwise make twice.

The 10-inch multi-touch display is large and quick to respond, and the screen stays readable through the middle of a bright day on an open console. At 3.7 pounds it is a heavier install than most, but it mounts solidly on a gimbal or flush bracket without flexing.

Active Imaging Bundle vs Separate Modules

The 3-in-1 transducer is the reason this package holds up on a small boat. Owners point out that having CHIRP, SideScan and DownScan Imaging through one cable through one hull fitting leaves a spare hole for a temperature sensor or a through-hull later. FishReveal processing separates the CHIRP fish targets from the DownScan bottom detail so the two images can overlay instead of competing.

Maximum depth is rated at 1000 feet, which removes a ceiling concern for anyone moving from inland to the shelf. What you give up is live sonar: ActiveTarget 2 or ActiveTarget 2 XL is a separate module, and that is the most common upgrade path owners add a year or two in.

Charting and the C-MAP Question

C-MAP DISCOVER charts are preloaded and cover inland, coastal and Canadian waters, so the unit is charted the day it is mounted. The related buying guide on boat GPS components explains how the preloaded tier compares with a paid annual card, but the short version is that a boat that stays inside familiar water can run for years without another chart purchase.

Wireless, NMEA 2000 and Ethernet integration all run from this display, which makes it the natural hub if a second screen or a VHF ever goes in. If your future plan includes a VHF marine radio that shares a GPS position over NMEA 2000, this unit already has the backbone for it.

Who Should Skip It

Skip this if your console is a small jon boat or a tiller skiff with a 7-inch opening. A 10-inch display in a tight space forces a swivel mount that ends up in the way of the throttle, and the same money in a 7-inch unit leaves room for the mount to be flush.

Also skip it if live sonar is the whole point of your setup. This is the one specification gap that matters, and no software update closes it, because the transducer has to be physically different.

2. Garmin GPSMAP 943xsv – The Highest Rated Display in the Group

This carries the highest average rating of anything I tested, with owners describing the graphics as impressive and the menus as learnable even without a technical background. The 9-inch IPS panel with improved display optics is genuinely bright, and the panning and zooming on vector charts stays smooth.

The honest catch is the box contents. This is a display with sonar capability and pre-loaded Navionics+ mapping, not a complete system. Owners with an existing NMEA 2000 network report reusing a shared transducer from a larger Garmin setup, which is how this model makes sense in an upgrade path rather than a first purchase.

Why the Scan Sonar Picture Is Different

Ultra high-definition scanning sonar with SideVü and ClearVü gives you beside-the-boat and beneath-the-boat detail at the same time, and Panoptix sonar support means a forward-looking live view if you add the right module later. Reviewers consistently single out the imaging as the reason to step up within the Garmin line.

Improved display optics matter more than raw brightness on an unshaded console. Wider viewing angles mean the screen reads from the helm seat or from standing beside the console without washing out, which is exactly the glare problem forum owners complain about most on small boats.

Install Reality on a Boat Under 20 Feet

This is a flush mount. The screen goes into a cutout in the console rather than sitting on top of it, which looks better and takes less space, but it needs depth behind the panel and a clean cut. That is professional work on most small boats, and it is the single biggest reason a first-time owner ends up with a bracket-mounted unit instead.

Because no transducer is included, budget for one separately and confirm the connector matches your existing Garmin hardware before you cut anything. Pairing the display with the wrong transducer family is the most common regret I see in owner threads about Garmin installs.

Where It Falls Short

The review pool is the smallest in this group, which tells you something about how many small-boat owners reach this model. It sits at the top of the size class a sub-20-foot console can actually accept, and the flush mount removes the tilt adjustment that glare-fighting usually depends on.

For a bay boat that already has a chartplotter and a NMEA 2000 backbone, it is a strong upgrade. For a first install on a plain aluminum jon boat, it is more effort and money than the job needs.

3. Lowrance Eagle Eye 9 Live Sonar – Watching Fish React in Real Time

Live sonar changed how I fish structure. Instead of watching a trail of fish that has already passed, you see the fish turn before it arrives. On this unit that comes from a single included transducer that delivers Live Forward, Live Down, CHIRP and DownScan Imaging with FishReveal, and it connects directly to the 9-inch IPS display with no separate sonar module in between.

At 2 pounds it is the second-lightest display here, and at 11.3 by 3.54 by 6.39 inches it fits a standard console opening more easily than the 10-inch models. That matters when you are mounting into an existing cutout rather than rebuilding the console.

Live Forward and Live Down in Practice

Live Forward is the one that earns the badge. Owners describe seeing a fish move on the lure before it reaches the boat, which shortens the strike window and removes most of the guesswork from jigging a ledge. Live Down does the same job for vertical structure directly beneath the hull.

Because the transducer plugs directly into the display, the wiring job is short and the whole install fits in a small console cavity. That simplicity is a real advantage on boats where the owner has never run a NMEA 2000 backbone.

Chart Coverage and the Inland Lean

Preloaded C-MAP charts cover more than 17,000 U.S. lakes, with Genesis Live mapping for recording your own contours as you go. Inland coverage is where this unit is strongest, and owners working coastal water tend to rely on the variant that carries coastal and Canadian detail.

Genesis Live is the feature owners get quiet about in the good way. You record the bottom while you fish, and the chart gets a depth-contour map of your own water. After a season of marking a familiar creek, the mapping is more useful than the chart that shipped with the box.

The Two Limitations to Know

The 500-foot maximum measuring depth is the hard number. For river, reservoir and shallow bay fishing it never comes up, but if you run offshore to deeper structure, you have less headroom than the 1000-foot units in this group.

The second is networking. NMEA 2000 and Ethernet are not listed in the specifications, so this display is hard to expand into a full system later. It is a standalone helm unit, and it works best as one.

4. Simrad GO9 – The Most Complete Bundle You Can Mount in an Afternoon

The Simrad GO9 arrived with the longest box contents list of anything I installed: the 9-inch multifunction display, an 83/200 kHz HDI transducer, a suncover, a C-MAP DISCOVER card, a gimbal bracket with knobs and a power cable. Nothing was missing, and the whole thing was running and charting the afternoon it went on the console.

Owners upgrading from the GO7 report the same thing I did, which is that the menu system is instantly familiar if you have used Simrad before and learnable in a weekend if you have not. The screen brightness holds up in direct sun better than most of the units in this roundup.

What the Included HDI Transducer Does and Does Not Do

The 83/200 kHz HDI transducer gives you clear CHIRP sonar and DownScan Imaging, which covers the two most common needs: finding bottom structure and finding fish directly below the boat. What it does not give you is side-scan, and that is the detail buyers most often miss when they assume a kit at this level includes everything.

Two other installation notes from owners are worth repeating. The transducer cable length is short enough on some transom layouts that an extension is needed, and the included suncover is fiddly to remove and re-seat. Both are minor, and both are cheaper to plan for than to discover at the dock.

Connectivity That Earns Its Keep

Built-in GPS, Wi-Fi, NMEA 2000, Bluetooth and Ethernet make this the best-connected display at this size. Screen mirroring to a smartphone or tablet means a passenger can read the chart from the bow while the person at the helm watches the sonar, and the NMEA 2000 support means engine data and instruments can join the same backbone.

It is also radar-ready. For a boat that might add a small dome or open-array radar in a few years, having the MFD already able to display it removes a future wiring step that is far more annoying than the cost of a cable.

The C-MAP Card Question

The included C-MAP DISCOVER card is vector cartography with custom depth shading, tides and currents, bathymetric contours and US plus Canada coverage. Out of the box, the unit is charted everywhere you are likely to run on a small boat, and the annual subscription conversation only comes up if you want fresher detail.

That is the practical answer to the most common forum objection about chart fees. A display that arrives with a usable card makes the subscription a genuine choice rather than the only path to a charted screen.

5. Humminbird Helix 7 CHIRP SI – Keypad Control That Survives Bad Weather

Wet hands at speed is the scenario that decides this category for a lot of small-boat owners, and it is the reason I keep recommending a keypad unit alongside any touchscreen. You can hit a physical button without looking down and without wiping your palm on the glass first, and nothing gets accidentally zoomed while the boat is running.

The 7-inch Color TFT screen is bright and readable in sun, and the softkey menu system works in any condition. Owners credit it with straightforward installation and dependable tracking, and many mention switching over from another brand for exactly the keypad reason.

CHIRP Side Imaging and Dual Spectrum Modes

CHIRP Side Imaging filters out noise and clutter for a cleaner view beside the boat, and CHIRP Down Imaging does the same job directly underneath. The Dual Spectrum CHIRP sonar with a Low-Q transducer adds a Wide mode for fast coverage and a Narrow mode when you want to pick individual fish apart, which is the pairing that makes this unit useful across different water types.

There is a real trade-off owners describe: on a 7-inch screen, side imaging tends to want the whole display. If your boat is for structure fishing rather than running the coast, plan on alternating between a chart view and a sonar view rather than trying to split them permanently.

AutoChart Live and the Basemap

Internal GPS plus the Humminbird Basemap covering 10,000-plus lakes and U.S. coastal water means the unit plots your position from day one. AutoChart Live adds real-time contour mapping with eight hours of built-in recording, so you can record the bottom of a lake or a creek as you work it.

LakeMaster, CoastMaster and Navionics premium cards are supported through the card slot if you want more detail than the basemap carries. That is the pay-as-you-go path here, and for a boat that fishes the same water year after year it is rarely a purchase anybody regrets skipping.

Install Notes and the Box Label Check

The box includes the control head, power cable, an XNT 9 HW SI T transom-mount transducer, mounting hardware and a gimbal bracket, so this is a surface mount you can put on and remove without cutting anything. A few buyers flagged a packaging label that said Side Imaging only when the description indicated both Side Imaging and Down Imaging, so check the model number on the box before you install.

The menu system takes practice. Owners who treat the first weekend as setup rather than fishing time get on with it quickly, and the settings reward that investment with cleaner sonar and better target separation.

6. Humminbird Helix 5 CHIRP GPS G3 – The Entry Point That Handles the Basics

Some small boats genuinely do not need more than this. Owners have fitted it to pontoons, jon boats and older wooden hulls, and the consistent description is a no-frills unit that does the essential jobs properly: find the bottom, mark a waypoint, know your speed, and get home.

Dual Spectrum CHIRP with a Wide mode for coverage and a Narrow mode for detail comes from the included XNT 9 HW T transom-mount transducer. The keypad control with a softkey menu works in any weather, and the 2.1-pound weight means it is easy to move between boats.

Split Screen and the 5-Inch Compromise

Split-screen views let you see sonar alongside speed and route data, which is the one layout trick that makes a 5-inch screen work. It is enough for a solo angler running a known lake, and it is not enough for someone running inlets or plotting a route with two people looking at the screen.

Compared with the 7- and 9-inch models in this guide, the 5-inch panel is genuinely small. That is the whole trade: you give up screen area and the SideScan and Down Imaging views, and you get a unit that fits anywhere on the boat and costs the least to install of the group.

The Missing Fuse Is the Real Installation Issue

The most common complaint from buyers is that a 3 amp fuse and fuse holder are not included, and on a small boat the power lead can be too short to reach the battery without an extension. Both are two-minute fixes with parts from any marine supply store, but plan for them before the boat is in the water.

Whatever display you install, give it its own fused circuit rather than tapping into the bilge pump line. On a single-battery boat the display and the bilge pump sharing a circuit is a genuine failure mode, and forum threads show exactly how that ends.

AutoChart Live on a Small Screen

AutoChart Live maps depth contours, bottom hardness and vegetation with eight hours of built-in recording, on the same 5-inch panel. Reviewers like that a feature usually associated with larger units is present here, and the eight hours of internal storage is enough to record most of a session.

Premium LakeMaster, CoastMaster and Navionics charts remain an option through the card slot. As with the Helix 7, treating charts as a later upgrade rather than a day-one requirement keeps the total cost of this setup low.

7. Lowrance Eagle 7 IPS – Built for Kayaks, Skiffs and Tight Consoles

At 1.5 pounds and 8.89 by 3.48 by 5.5 inches, this is the smallest complete GPS display I have mounted, and it is the one that made sense on a skiff with almost no console. The high-visibility IPS screen is the standout: owners specifically note that it stays readable while wearing polarized glasses, which is a real problem on a lot of small boats in open sun.

The new twist-lock connector is the other thing worth caring about. It makes installation repeatable in a way that older marine connectors were not, and the line is available in 4, 5, 7 and 9 inch sizes if you want to move up later without changing habits.

Surface, Panel and Flush Mounting on the Same Unit

This display is listed for surface, panel and flush mounting, so one model covers a kayak deck, a skiff console and a bay boat dash. On a flat deck, mounting it surface-style with the included bracket takes minutes, and the IPS panel angles well enough to read from a seated paddling position.

Maximum measuring depth is 500 feet, and the SplitShot HD sonar with FishReveal on DownScan and CHIRP covers the two views that matter on inland water. Preloaded C-MAP inland charts cover 17,000-plus U.S. lakes, and Genesis Live adds custom half-foot contours recorded by you.

The Two Trade-Offs Nobody Mentions First

Nautical charts require a separate SD card in some configurations, so coastal buyers should confirm what the specific variant ships with before they commit. Several buyers moving from older C-MAP cards also found the bundled mapping thinner for smaller Canadian lakes, which matters if your water is north of the border.

The one-year warranty is the shortest in this group. Owners coming from an older Lowrance unit consider it a modest step up overall, but the shorter support window is worth factoring into any long-term ownership plan.

Best Used on the Boat Where Space Rules

This is the unit I would put on a boat with a single battery, a small console and no plan to add a NMEA 2000 network. It charts, it finds fish, and it mounts anywhere. If your boat is a 20-foot center console with a full electronics bay, you are leaving capability on the table for no gain.

8. Garmin Striker Vivid 7cv – The Brightest Screen, With a Charting Catch

This is the most-reviewed display in my group, and owners repeatedly call it the right size for the money. The screen stays bright and readable in the sun, and the vivid scanning sonar color palettes are the feature people describe first, because separating a fish silhouette from a rock in ten feet of water is the whole job.

The included GT20 transducer provides Garmin CHIRP traditional sonar plus CHIRP ClearVü scanning sonar, and the tilt and swivel bailmount bracket makes it easy to angle the panel away from overhead glare on an open console.

The Fishfinder-Only Trap, Stated Plainly

This unit has high-sensitivity GPS for marking waypoints, creating routes and viewing boat speed, and it has Quickdraw Contours built in. It does not have navigational charts preloaded, and that is the single most frequent caveat from buyers.

So it is a chartplotter in the everyday sense that it plots your position and shows a map, and it is not a chartplotter in the sense that most people mean when they plan a coastal trip. If your boating stays on inland water, this is a non-issue. If you run inlets and open coastal water, budget for a chart card and know that the unit is designed more around sonar than around navigation.

Quickdraw Contours and the ActiveCaptain App

Quickdraw Contours generates a depth map of the water you are fishing as you go, and Wi-Fi connectivity lets you transfer waypoints, receive smart notifications and access the Quickdraw Community from the ActiveCaptain app. Owners on lakes describe this combination as the reason the unit pays for itself in a season.

Because it is a Garmin, the app ecosystem is the mature one here. It is a real advantage if your phone is your navigation backup, which on a small boat is a sensible habit regardless of what is mounted at the helm.

Weight, Mounting and the Learning Curve

At 4.4 pounds this is heavier than most 7-inch alternatives, and the mount is a surface bailmount rather than a flush option. On a small hull that is actually convenient, since nothing has to be cut, but on a bay boat console a flush-mounted 7-inch looks and performs better.

The feature set takes study time beyond the basics. Reviewers are consistent about this, and the advice that comes up most often is to set aside the first outing to learn the menu rather than trying to fish and configure at the same time.

9. Humminbird Helix 5 CHIRP DI – Down Imaging Without the Big Screen

Down Imaging is the feature that separates this from the other 5-inch unit in this group, and owners credit it with good fish separation and a clear picture of what is directly under the hull. Accuracy holds up in as little as 10 feet of water, which is most of the shallow water a small boat ever sees.

Several owners installed it on small boats, canoes and older wooden hulls, and the long transducer cable came up repeatedly as a practical plus. When your motor is well forward of the transom, that extra length is the difference between a clean install and a splice.

CHIRP Down Imaging on a 5-Inch Panel

CHIRP Down Imaging filters visual noise and clutter for a clear view beneath the boat, while Dual Spectrum CHIRP sonar gives Wide and Narrow modes from a Low-Q transducer. On a 5-inch screen the down view is the more useful of the two, because it does not need as much horizontal space to be legible as a side view does.

That is worth knowing when you are weighing this against a side-imaging unit at a similar size. Side scanning shows more, but it needs more screen. Down scanning shows less, and it fits what a small panel can actually show you.

GPS, Basemap and AutoChart Live

Enhanced GPS navigation runs on the Humminbird Basemap covering 10,000-plus lakes and U.S. coastlines, and readouts for speed, water temperature and GPS tracking are accurate enough to navigate by. Real-time mapping with AutoChart Live records depth contours, bottom hardness and vegetation with eight hours of built-in recording.

LakeMaster, CoastMaster and Navionics premium charts are supported for anyone who wants more detail than the basemap carries. As with the other Humminbird models here, charts are a later decision rather than a reason to buy a different unit.

Install Friction Worth Knowing

Two recurring negatives: the 3 amp fuse and fuse holder are not in the package, and the bail mount bracket is a little harder to mount and remove than most people expect. Both are small, and both are easier to solve on the dock than at the trailer ramp.

Down Imaging settings do add a technical learning curve for anyone used to two-dimensional sonar only. Owners coming from older 2D units say a weekend of playing with the settings pays for itself in cleaner structure separation.

10. Garmin ECHOMAP UHD2 93sv – Wireless Networking and a Complete GT56 Bundle

This is the unit I would build around if a boat is going to grow over the next few years. Built-in Garmin Navionics+ inland maps covering more than 18,000 lakes with 1-foot contours are already on board, the included GT56-TM transducer covers traditional, ClearVü and SideVü, and built-in Wi-Fi lets you share sonar, waypoints and routes with a second ECHOMAP UHD2.

It also connects wirelessly to a Force trolling motor, which means route creation, waypoint following, speed control and battery monitoring without a separate switch panel. Owners who fish from a trolling motor platform consistently name that connection as the reason to step up to this model.

The GT56 Transducer Is the Reason to Buy It

Most competitors at this size give you CHIRP and down imaging. The GT56-TM adds SideVü, so you can scan beside the boat without a second unit or a second hole in the hull. On a small boat where every penetration is a decision, having one transducer cover three sonar modes is genuinely useful.

Display quality is the other argument. The 9-inch sunlight-readable touchscreen has improved clarity and viewing angle over earlier Garmin 9-inch panels, and buyers point to exactly that when explaining the step up.

Two Units or One

The wireless sharing feature is what forum owners mean when they describe running a chart on one display and sonar on another. Two ECHOMAP UHD2 units can share sonar, waypoints and routes wirelessly, which turns the 7 versus 9 inch argument into a question of how many screens you can physically fit.

The catch is that this only works with a second compatible display, so on a single-screen boat you are paying for a capability you cannot use. If you have room for two panels, this is the pairing that makes it work.

Size, Weight and the Small-Boat Reality

At 8.1 pounds this is the heaviest display in the group, and the 9-inch footprint is at the top of what a sub-20-foot console realistically accepts. Tilt and flush mounting hardware is included, so both install routes are open, but the flush option is the one that makes the weight make sense.

Only a one-year limited warranty comes with it, which is shorter than the two-year terms on several cheaper models here. That is worth factoring in if you keep boats longer than a few seasons.

How to Choose a Chartplotter for a Boat Under 20 Feet

The display is maybe two-thirds of the decision. The rest is charts, transducer, mount, antenna and wiring, and getting any of them wrong is what turns a good purchase into a frustrating one. Here is the order I work through it.

1. Measure the Opening Before You Choose a Screen

Start at 7 inches and stop at 9 inches. Owners on The Hull Truth are consistent on the 7 versus 9 inch question, and the reason is a layout problem rather than a brightness problem: at 7 inches you effectively have to give a whole screen to side imaging, while a 9-inch display can hold a chart and a sonar view without either becoming useless.

That is the honest answer to whether 7 inches is enough. It is enough if you are not a heavy structure fisher, and it is a compromise if you are. The compromise most owners accept is running a chart-focused 7-inch unit alongside a separate fish finder, which costs more but keeps both views legible.

Before anything else, measure the cutout and the depth behind the console. Flush mounting needs clearance behind the panel, and small-boat owners regularly discover they cannot get it in a shallow console cavity. A surface or bracket mount avoids that problem entirely, which is why so many of these units list multiple mounting types.

2. Decide Chartplotter or Fish Finder, and Check What Ships

A chartplotter plots your position against navigational charts. A fish finder shows what is below the boat through sonar. A multifunction display, or MFD, does both, and most of what people mean by chartplotter today is an MFD. A GPS plotter is the older category that plots position against a basemap with no real navigational detail.

The display spec on its own is not the whole system. Check the Included Components line in every entry above before you commit, because it is the difference between one purchase and three.

If your boating stays on water you know well, a fish finder with a basemap and waypoint marking may be all you need. If you run inlets, rivers or open coastal water, you need real navigational charts, and you need them before the first trip.

3. Budget the Whole System, Not the Display

Here is the check most buyers skip. Displays that do not include a transducer need one added, and transducer tiers differ by a wide margin. Displays without charts need a card or an annual subscription. Every install needs a mount, a fuse and fuse holder, a power run, and often an external GPS antenna. Speakers and a VHF radio sharing the same NMEA 2000 backbone are a natural later addition rather than an extra wiring project.

Write the full list down before you shop, because the bundle units in this roundup exist specifically to collapse that list into one purchase. The Lowrance Elite FS, the Simrad GO9 and the Garmin ECHOMAP UHD2 93sv all ship with a transducer and charts, and that is the difference between one decision and four.

4. Think About Cartography and Ongoing Cost

Chart subscription anxiety is the loudest thread-level complaint about these systems, and it is a fair one. Navionics+ and C-MAP both operate as annual subscription models where the newest chart detail is included, and the top-ranking discussion on r/BuyItForLife exists because buyers feel the recurring fee is a tax on top of a hardware purchase.

There are three honest answers. The first is that every display here that ships with preloaded charts or a C-MAP DISCOVER card will chart your water for years without another purchase, which is enough for most small-boat use. The second is that chart cards exist as a one-time alternative where you accept older detail. The third is that if you fish the same ten spots for a decade, the annual cost is not the real expense in your electronics budget.

What I would not do is buy a display with no onboard charts on the assumption you will sort it out later. Decide your cartography before the unit, because the ecosystem you buy into determines the card format that fits it.

5. Match Control Style to How You Actually Boat

Keypad units such as the Humminbird Helix models keep winning owner loyalty for fast small craft, and the reason is practical rather than nostalgic. Touch targets get missed at speed and with wet hands, and a miss at 20 knots is a real event.

Touchscreen units give you more usable screen area for charts, and the IPS panels in this group stay readable at extreme viewing angles and through polarized glasses. If your console has a sun visor or a hard top, touchscreen is the better call. If you run an open skiff in bright sun at speed, keypad is the safer one.

6. Do You Actually Need a Chartplotter?

Sometimes you do not, and saying so is more useful than another recommendation. A phone or tablet running marine cartography covers route planning, waypoint transfer and weather, and a waterproof case costs a fraction of any display in this guide. On a boat that only ever runs one familiar lake in good weather, that may be the honest answer.

A mounted display earns its place when you need charts that work with no signal, a screen you can read in direct sun with gloves on, and a device that does not care whether your phone battery is flat at 6 am. That is most coastal and multi-watercraft boating, and most of the reason small-boat owners end up buying one anyway.

7. Single-Battery and Install Constraints

On a boat running one cranking battery, an inefficient display becomes a problem during long motor-off sessions. Give the unit its own fused circuit and do not piggyback it onto the bilge pump line, which is the failure mode that shows up repeatedly in owner threads. A 3 amp fuse and fuse holder are missing from the box on more than one model in this roundup, so add them to the parts list.

An external GPS antenna is worth adding on any boat with a hard top, a trolling motor or electronics mounted under a canopy. The internal receiver is rarely the bottleneck on an open boat, and it often is under cover. Mount the antenna with a clear view of the sky rather than under the console lid.

8. When a Used Unit Makes Sense

A used display is a reasonable buy when you can power it on, confirm the menu and touchscreen respond, and check the transducer age. In saltwater, transducer life is shorter than in freshwater, and corrosion around the transducer pins and the power connector is the thing to look at hardest.

Also confirm the unit still receives firmware updates. Display lineups change and some sizes disappear from a brand range, which leaves owners without a natural step up. Buying into a brand with a broad current size range protects your next upgrade as much as it helps today.

Frequently Asked Questions

Which Chartplotter Should You Buy in 2026?

If you want one box that covers sonar, charts and networking, the Lowrance Elite FS is the answer, and it is the unit I recommend most often this year. If you want the best balance of features and installation effort on a 9-inch screen, the Simrad GO9 does more with what is in the box than anything else here.

Run a small jon boat, skiff or kayak, and the Lowrance Eagle 7 IPS is the right size and weight for the space. Fish structure hard and want side-scan without a second hole in the hull, and the Garmin ECHOMAP UHD2 93sv with the GT56 transducer is built for exactly that. Already have a NMEA 2000 network and a larger boat, and the Garmin GPSMAP 943xsv is a strong display upgrade.

On a tight budget or a small pontoon, the Humminbird Helix 5 CHIRP GPS G3 covers the essentials and nothing you will miss. If you want down imaging without moving up a size, the Humminbird Helix 5 CHIRP DI is the better small screen. Bright sun and wet hands both, the Garmin Striker Vivid 7cv wins on readability, and it is the most-reviewed display in this group.

Whichever one you choose, measure the opening, give it its own fused circuit, and decide your chart ecosystem before you open the box. Those three steps prevent nearly every problem we saw across two seasons of testing. If you are still comparing hulls rather than electronics, our inflatable boat roundup and pedal boat picks cover the other end of the size spectrum.