Obi Mobiles has launched its flagship device - Octopus S520 - in India at a price of Rs 11990. The smartphone is available with online shopping mart Snapdeal. The specs include - 5-inch display, 1.7GHz Octa-Core Processor, 1GB RAM, Android 4.4.2 (KitKat). Its battery can sustain 240 minutes of talk time and offers up to 180 hours of standby time.