Sony has finally launched its flagship device, the Xperia Z Ultra in India for a price of Rs 46,990.The smartphone will be spearheading Sony’s lineup in India and the device will lock horns with the likes of the upcoming Galaxy Note 3 and the recently launched LG Optimus G Pro. It has a screen of 6.4 inches which makes it the biggest smartphone on sale in India in terms of real estate.The smartphone...