LG Backup lets data migration from old smartphone to new LG smartphone. When migrating to LG G3, backup data can be transferred directly between smartphones using Wi-Fi hotspot feature. If both sender and receiver phones are LG smartphones, use pre-installed LG Backup app instead of downloading this app.
Contact, Calendar, Bookmark, Message(SMS), Photo, Video, Music, Documents, Voice Memo
Sender - Android Gingerbread and above
Receiver - LG G2 and beyond (Direct Wi-Fi transfer from LG G3)
Some functions may be limited depending on smartphone manufacturer/model.