Dubbed as the 'fastest' smartphone in the world, Xiaomi has left no stone unturned to launch Mi 4, the successor to Mi 3 next year. But how is the Mi 4 different from Mi 3? Can these two along with a bouquet of smartphones launched by the Chinese company help it cross the 100 million mark next year?

The iPhone 6 represents the flagship smartphone of the company and whether or not it manages to compete with the Samsung Galaxy Note 4 or Sony Xperia Z3, you can bet Apple will create history once more.