Nokia Lumia 730 Dual SIM official Pictures. Nokia Lumia 730 Dual SIM is a Smartphone of nokia. The Nokia Lumia 730 Dual SIM Windows Mobile Smartphone. Announced Sep 2014. Features 4.7″ Display, Snapdragon 400 Chipset, 6.7 MP (6.1 MP Primary Camera, 5 MP Front Camera, 2200 MAh Battery, 8 GB Storage, 1000 MB RAM, Corning Gorilla Glass 3. Nokia Lumia 730 Dual SIM price starts.