In November 2011, Nokia was still the world''s No. 1 mobile phone manufacturer, and the Finnish giant also cooperated with Microsoft, intending to continue their brilliant record in the field of smartphones.


    Apple''s iPhone has been pushed to the 4S, and the sales of the previous generation have reached an astonishing nearly 40 million units. It is already a powerful force in the field of smart phones that should not be underestimated.


    Samsung from South Korea relies on the Android system and the world''s leading product


    The content of this chapter is being updated...