Raymarine vs Garmin: a cruising navigation system comparison

Raymarine and Garmin can both form the core of a cruising boat’s navigation system. Start by listing the equipment you intend to retain and the functions the watchkeeper needs. This is especially important for a refit: a cheap new display can become an expensive project if it makes a working scanner, charts or interfaces unusable. This comparison covers decision-making and documented examples, not independent hardware performance scores.

#The short recommendation

Shortlist Raymarine when a supported Axiom installation fits the existing equipment or its controls and integrated options meet the brief. Shortlist Garmin when a supported GPSMAP installation preserves useful Garmin equipment or wins the crew’s practical workflow test. If neither has a retention advantage, get a complete quote from each and test the controls before choosing.

Shaded rows contain different values. On a small screen, scroll the table; model names stay visible within it.

Sources for the features above: Axiom 2 Pro S and GPSMAP sailing settings. These examples do not mean that all models in either family have identical controls or capabilities.

#Do not turn camera integration into an unsupported safety claim

A supported camera can help the crew inspect a blind area or interpret a scene. If a camera is central to the brief, ask the supplier to demonstrate the exact camera/display pairing, control functions, night view and latency. Include its mount, cleaning access, wiring and any additional sensor or processor in the quote.

A thermal or visible-light image does not establish clear water ahead, identify every object or replace lookout. Avoid choosing a brand solely from marketing images of dramatic night scenes. Instead set a useful acceptance question: can the helm operator obtain and interpret the required view quickly, and does the installation leave the normal navigation tasks readable? A less elaborate system can be the better choice when it is easier for the actual crew to operate.

#A budget refit example

Consider a 36-foot cruiser with reliable instruments and a supported existing Raymarine radar. Quote an Axiom route first because retention may save money, but confirm the actual scanner model rather than treating the name on the dome as sufficient evidence. Price a Garmin route on the same basis, including any scanner replacement and additional work. Compare total installed scope, not two display-only prices.

Reverse the logic on a boat with useful Garmin radar and sensors. The Garmin network compatibility guide demonstrates why a new network generation may need explicit gateway planning. A “same brand” replacement is not automatically plug-and-play. If the retained equipment is near the end of useful life or unsupported, a clean redesign may be more sensible than paying for adapters that only postpone replacement.

#A premium catamaran example

On a 45-foot cruising cat, both candidates should be evaluated against the working stations: raised helm, sheltered planning position and any opposite-helm requirement. Ask for the network route across the boat, clear port/starboard engine labels, depth-source identification and the steering selection basis. These requirements are more specific than “two big screens and all the options”.

Choose display size only after checking reach, sightlines and service access. Put the source-selection and power drawings beside the equipment quote. Decide which functions remain after the main display is off and which depend on the same network switch. Use the catamaran versus monohull guide to identify the installation differences, then the budget versus premium guide to rank additions.

#The demonstration that settles a close comparison

Give both suppliers the same small task list. Ask a crew member to retrieve a route, inspect a hazard at a useful scale, switch to radar, find depth, dim the screen and identify the pilot standby control. Record what was difficult and what additional controls would solve it. Do not time a familiar system against an unfamiliar one after unequal training and call that a benchmark.

Finally, request the chart region, update terms, supported sensor list, software versions and handover procedure in writing. The AHO chart reference explains why attractive cartography and trustworthy underlying information are different questions. If the quotes still look equal, prefer the installer who can explain the complete system and its limitations clearly, backed by a credible service and acceptance plan.