Navionics 010-C1371-40 Platinum+ U.S. West Coast Marine GPS Chart Card

Navionics

<h3>Navionics: Pioneers of Electronic Marine Cartography</h3><p>Few names carry as much weight on the water as Navionics. Founded in 1984 in Massarosa, Italy, the company made history from day one — <strong>introducing the world's first marine electronic chartplotter</strong>, the Geonav, and forever changing how mariners navigate. Today, as part of the Garmin family since 2017, Navionics continues to set the standard for digital marine cartography, serving recreational boaters, anglers, and professional mariners worldwide.</p><p>At the heart of the Navionics lineup are its celebrated <a href="/200257-charts-and-maps-navionics-7470">Charts and Maps</a> — comprehensive digital cartography products that cover far more than just open ocean. Navionics+ cartography delivers integrated offshore and inland marine mapping, spanning rivers, bays, and more than 42,000 lakes around the world. Whether you&apos;re threading through a narrow inlet, anchoring in an unfamiliar harbor, or hunting for productive fishing structure, Navionics charts provide the detail and confidence you need.</p><p>One of the most powerful aspects of Navionics cartography is its SonarChart&trade; technology, which renders HD bathymetric data at up to 1-foot (0.5-meter) contour resolution. This level of bottom-structure detail is invaluable to anglers trying to identify ledges, channels, and depth transitions, as well as to cruisers who need to avoid shoals in unfamiliar anchorages. Advanced features like dock-to-dock route guidance and shallow-water shading round out the navigation toolkit for everyday boating.</p><p>The brand&apos;s <a href="/7470-navionics-electronic-charts-200359">Electronic Charts</a> range spans two primary product tiers. Navionics+ offers robust coverage with live mapping, Plotter Sync for wireless chart updates via the Navionics Boating app, and daily chart updates sourced from official hydrographic offices, private surveys, and millions of boater contributions. Platinum+ builds on that foundation by adding high-resolution relief shading, satellite imagery, and SonarChart shading — ideal for boaters who demand the most immersive, data-rich navigation experience available.</p><p>Navionics charts are delivered on MicroSD cards compatible with a wide range of chartplotter brands, including select Garmin, Raymarine, and other supported systems. Each new chart card includes a one-year subscription to daily updates and advanced features, keeping your on-water data as current as possible. The Navionics Boating app also extends the platform to smartphones and tablets, enabling off-boat trip planning, route synchronization, and chart review wherever you happen to be.</p><p>With nearly four decades of cartographic expertise and a global network spanning seas, oceans, lakes, and rivers, Navionics remains a trusted benchmark for boaters who take navigation seriously.</p>