iBall Cobalt Oomph 4.7D smartphone was launched in April 2015. The phone comes with a 4.70-inch touchscreen display with a resolution of 720 pixels by 1280 pixels at a PPI of 312 pixels per inch. iBall Cobalt Oomph 4.7D price in India starts from Rs. 4,444. The iBall Cobalt Oomph 4.7D is powered by 1.3GHz […]