Thread: BlueChart g2 vs BlueChart g2 Vision and Small vs. Regular vs. Large vs. eXtra Large

Originally Posted by fyndi

Why this file is so small? Under 50Mb, normally these files are up to 2Gb???

Normally up to 2 GB? There's not many BlueChart g2 that are close to 2 GB. Specially not the Small regions.
On the other hand there's many BlueChart g2 Vision charts that are over 2 GB in file size, booth Large and Regular regions.

BlueChart g2 - Top 5 in file size:

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BlueChart g2 Vision - Top 5 in file size:

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How to Read Your BlueChart® g2 ID Code

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How to Read Your BlueChart® g2 Vision ID Code

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Supported Features	g2	g2 Vision
Seamless chart presentation	✔	✔
Vector object oriented data	✔	✔
Shaded depth contours and inter-tidal zones with spot soundings	✔	✔
Port plans	✔	✔
Tidal stations for selected countries	✔	✔
Aids to navigation with view range and coverage including light sector info	✔	✔
Wrecks, restricted areas, anchorages, obstructions	✔	✔
Tidal current graphs	✔	✔
2-D or 3-D map perspective view	✔	✔
Marina points of interest and slipways	✔	✔
Full bathymetric fishing charts providing detailed contours	✔	✔
Aerial photos of ports, marinas, bridges and navigational landmarks		✔
Detailed coastal roads up to 5 miles inland (non-routable)		✔
Points of interest such as restaurants, lodging, entertainment and more		✔
Realistic “view from space” high-resolution satellite imagery		✔
3-D Fish Eye and 3-D Mariner Eye view		✔
Auto Guidance technology to suggest best passages		✔
Tidal current flow overlay		✔