Beijing Offline Map - free maps designed specifically for travelers.
Advantages of offline maps:
Save money in roaming
Work fast even with bad Internet connection.
You can see the map if there is no Internet: in the subway, on the plane
All functions work offline:
Beijing Offline Map with travel guide
All tourist attractions on the map
Wiki descriptions for tourist attractions
Search by category (airports, metro stations, train stations, hotels, etc.)
Save and edit favorite locations
Automotive and pedestrian GPS navigation in the paid version