Features
Fastest Google Earth performance
Improved printing and saving capabilities (2400 pixels)
Additional annotation tools (draw polygons with height)
Additional measurement tools (square feet, mile, acreage, radius, etc.),
Spreadsheet import - ingest up to 2,500 locations by address or lat/lon.
Technical Support assistance (email and phone) during business hours PST
Premium features and data (add-ons) such as movie maker, premium printing, GIS data importer and GDT traffic counts data work exclusively with Google Earth Pro
Note: While there are additional capabilities and features available in Google Earth Pro, the underlying imagery is the same for all versions of Google Earth