Which is the most comprehensive and accurate in mobile navigation?

Which map of mobile navigation is the most comprehensive and accurate?

1, Gaode Map is the most comprehensive and accurate navigation map software;

2. The map needs to be manually processed, and the outline is drawn on the image taken by aviation or satellite, thus forming the vector map we are currently using, or a three-dimensional image; In China, there are mainly two suppliers, namely NavInfo and Gaode.

3. In addition, the map will cover layers of different data. For example, Baidu map basically only has some basic and commonly used layer data, such as some three-dimensional data, traffic layer data, satellite film layer data and so on. Gaode's map has some special data, such as real estate data. Gao De has the ability to collect and produce data in some fields.