The original small and large coverage areas are being kept on for now for Plotters that use compact flash cards. Plotters that take SD/MSD cards should change to the 2022 coverage areas.
Platinum products include the same chart content and advanced features as Navionics+ and offer additional viewing options. Your boating experience will never be the same with panoramic photos, 3D View, combined Satellite overlay with SonarChart Shading layer, and new sea bottom relief shading.