LG Optimus Sol E730 official Pictures. LG Optimus Sol E730 is a Smartphone of lg. The LG Optimus Sol E730 Android Smartphone. Announced Aug 2011. Features 3.8″ Display, Snapdragon S2 Chipset, 5 MP Primary Camera, 1500 MAh Battery, 1000 MB Storage, 512 MB RAM, Corning Gorilla Glass. LG Optimus Sol E730 price starts.