Garmin vs Simrad vs Raymarine Chartplotters: The 2026 Head-to-Head

Updated August 18, 2026 · BoatGear editorial

Garmin, Simrad (Navico), and Raymarine account for the vast majority of recreational chartplotter sales in North America and Europe. All three make genuinely good chartplotters at every price band. All three have polished user interfaces, deep ecosystems, and reliable products. Choosing between them isn't about "best" — it's about matching brand strengths to how you actually use your boat.

This comparison walks each brand's strengths and weaknesses across the six dimensions that actually differentiate them: user interface, ecosystem breadth, sonar quality, radar integration, autopilot capability, and chart data. Then it gives clear recommendations for specific use cases.

User interface — the daily experience

Garmin

The most polished consumer-friendly interface in marine. Clean layouts, discoverable menus, and clear iconography. Uses touchscreen plus real buttons, both work well. Muscle memory transfers well between Garmin models across price tiers. The learning curve is genuinely gentle — a novice can navigate a Garmin GPSMAP within a few minutes of first use.

Simrad

A technical, information-dense interface that assumes competence. More configurable than Garmin (lots of hidden menus for advanced users), less discoverable for novices. Different button layouts across product generations sometimes confuse users moving between models. The NSS Evo3S and NSO Evo3S have the same interface philosophy; older units feel different.

Raymarine

LightHouse (Raymarine's interface) is the most touch-first of the three, closer to smartphone conventions. Beautiful graphics, intuitive gestures, and the fastest to learn if you've never used a marine chartplotter before. Some cruisers find it too finger-oriented — small precise touches are harder when hands are wet or cold.

Ecosystem breadth — what integrates with what

Garmin

The broadest ecosystem in marine. Chartplotters, radar (Fantom, GMR), autopilot (GHP Reactor), Panoptix LiveScope sonar, VHF (Garmin VHF radios integrate directly), engine data (via NMEA 2000), and even smartwatch integration for at-a-glance data on Garmin Marine watches. Everything Garmin makes talks to everything else Garmin makes.

Simrad

Deep ecosystem within Simrad/Navico (which includes Lowrance and B&G brands). Simrad radar (Halo24, HALO), autopilot (Precision-9, Continuum), sonar (StructureScan HD), VHF (RS40, RS100). The NMEA 2000 backbone lets Simrad displays talk to non-Simrad sensors seamlessly. Slightly less broad than Garmin but arguably deeper in the premium segments.

Raymarine

Comprehensive but slightly smaller ecosystem. Chartplotters, Quantum 2 radar, Evolution autopilots, RealVision 3D sonar, Ray VHF radios. Third-party integration via NMEA 2000 works well. Ecosystem is deep where it exists but doesn't extend as far into peripherals as Garmin.

Sonar quality — where Raymarine leads

Raymarine

The clear best-in-class sonar. RealVision 3D produces genuinely 3D imagery of structure and bottom that Garmin and Simrad partially match but don't fully replicate. CHIRP sonar processing is excellent. SideScan and DownVision have earned Raymarine its reputation as the fishing chartplotter of choice among serious anglers.

Garmin

Very good sonar. CHIRP processing is excellent, Panoptix LiveScope (real-time forward-looking sonar) is unmatched in that specific capability. But 2D and 3D bottom rendering isn't quite at Raymarine's level. For most recreational sonar use, Garmin is more than adequate; for serious fishing, Raymarine still edges ahead.

Simrad

Solid mid-tier sonar (via Lowrance-derived processing). StructureScan HD covers side-scan/down-scan needs adequately. Not Simrad's strongest area — the brand's identity is more around sailing/cruising than fishing. Perfectly usable for occasional fishing; not the pick if fishing dominates.

Radar integration — where Simrad leads

Simrad

Best-in-class radar processing in the recreational segment. Halo24 pulse-compression domes produce cleaner images with less clutter than competitor equivalents at similar price points. Radar overlay on chartplotter screens is more polished. If radar is important — coastal cruising, night operation, weather routing — Simrad has a genuine edge.

Garmin

Very good radar (Fantom domes and open-array units). Not quite Simrad's level of image processing sophistication, but the interface for adjusting radar settings is cleaner. For cruisers who use radar occasionally but not obsessively, Garmin is better than adequate.

Raymarine

Solid radar (Quantum 2 pulse-compression). Similar image quality to Garmin's Fantom. Not Raymarine's strongest area; buy Raymarine for the chartplotter/sonar, consider adding a Simrad radar via NMEA 2000 if radar matters heavily.

Autopilot integration — where Simrad leads (again)

Simrad

Best-in-class autopilot integration for sail and long-range cruising. The Precision-9 compass and Continuum autopilot integrate seamlessly with NSS chartplotters. Advanced routing features (weather routing waypoint sequences, no-go zones for sailboats) are Simrad's strongest area of differentiation from competitors.

Garmin

Excellent autopilot (GHP Reactor series) with polished chartplotter integration. Not quite Simrad's advanced routing depth, but more approachable for typical recreational use. The right pick for cruisers who want reliable autopilot without diving into advanced configuration.

Raymarine

Very capable autopilot (Evolution EV-100/EV-200) with good chartplotter integration. Middle of the three brands for autopilot depth. Solid choice for cruisers who already committed to Raymarine chartplotter; not necessarily the reason to choose Raymarine.

Chart data — a wash across brands

Garmin (Navionics+)

Garmin acquired Navionics in 2017 and unified their chart offerings under Navionics+. Comprehensive worldwide coverage with regular updates. Auto-Guidance routing feature is polished. Comparable to C-MAP for most regions.

Simrad and Raymarine (C-MAP DISCOVER, Navionics)

Both brands support C-MAP DISCOVER and can use Navionics cards. C-MAP has slightly better commercial data in some regions; Navionics has better US inland lake coverage. Practical differences are small for most recreational use.

For all three brands, budget $150-350 for regional chart coverage and $50-150/year for updates.

Which one for which use case — clean recommendations

Center console fishing boat (single screen):

Raymarine Axiom+ 9 RV. The sonar advantage is the deciding factor for a fishing-first boat. Runs $200-400 more than the Garmin equivalent; delivers noticeable fishing sonar improvements.

Cruising sailboat, coastal work:

Garmin GPSMAP 8410xsv or Simrad NSS 9 Evo3S. Either is excellent. Choose Garmin if you value polished UI and broad ecosystem; choose Simrad if you're serious about autopilot depth or plan to add sophisticated radar.

Long-range cruising sailboat or trawler:

Simrad NSS Evo3S multi-station setup. Best autopilot and radar integration for extended offshore work. Steeper learning curve; more capability once learned.

Weekend cruiser doing "everything a little":

Garmin GPSMAP 743xsv or 8410xsv depending on budget. Best all-around performer for buyers who don't have a dominant specialty. Easiest to learn, deepest peripheral support.

Serious offshore sport fishing:

Raymarine Axiom Pro 12 RVX with external CHIRP module. Best sonar plus enough chart/radar capability for offshore navigation. Adding a Simrad radar via NMEA 2000 is a valid path if radar quality matters.

What each brand doesn't do well

• Garmin: Doesn't match Raymarine's fishing sonar. Doesn't quite match Simrad's autopilot advanced routing. Weaker for specialty long-range cruising autopilot work.
• Simrad: Learning curve is real; expect several weekends of setup and configuration to unlock capability. Weaker sonar for serious fishing. Fewer budget-tier options than Garmin.
• Raymarine: Slightly smaller ecosystem than Garmin. Autopilot integration and radar processing are middle-of-pack. Chart interface polished but less approachable for first-time users than Garmin.

Mixing brands — actually a valid strategy

NMEA 2000 lets you mix brands on one boat effectively. Common combinations that work well:

• Garmin chartplotter + Simrad autopilot + Raymarine radar/sonar (each brand does its best specialty).
• Raymarine chartplotter/sonar + Simrad radar (fishing depth plus radar quality).
• Simrad chartplotter + Garmin VHF + third-party sensors (all sharing N2K data).

The trade-off: full-featured integration (sonar images on chartplotter screens, radar overlay, autopilot commands with chartplotter routes) requires same-brand components for those specific pairs. Mixing loses some integration polish.

Bottom line

All three brands make chartplotters you'd be happy with. The question is which matches your priorities. If you had to pick one brand without knowing anything about the boat, Garmin is the safest default because it doesn't have significant weaknesses in any single area. If your boat has a dominant specialty (serious fishing → Raymarine; serious sailing/offshore → Simrad), the specialized brand's advantages become the deciding factor.