Annual sales of the iPhone hit an estimated 3 million units in Japan during the year 2010. This puts the Japanese iPhone market as the second largest in the world, after the USA.
Softbank, the third largest national telecommunications operator, is currently the exclusive carrier of iPhones in Japan. Although their signal quality is not very good, strong demand for the iPhone is making them rise above this disadvantage. However, there is still much room for growth. In fact, unit sales are expected to see a tremendous increase once carriers with strong signal quality like Docomo, au, jump into the bandwagon; much like how Verizon’s entry into the iPhone market greatly bumped up unit sales in the US.