According to iiMedia Research, global mobile phone shipments in 2018 were 1.891 billion, down 4.4% from a year earlier, of which smartphone shipments were 1.405 billion, down 4.2% from a year earlier. As the world's largest mobile phone market, China has contracted more sharply than the global market. In 2018, China shipped 390 million smartphones, down 11.7% from 2017, and the stock competition intensified. At the same time, emerging market countries, represented by Africa and India, are in the period of demographic dividend release. Mobile phone penetration rate is generally low, and mainly functional machines. Data show that smartphone penetration in Africa remained at 33% in 2018, compared with 28% in India. Incremental market and upgrading demand of stock market brought by demographic dividend in emerging countries show that the mobile phone market still has great development potential, which attracts the attention of mobile phone giants, who have increased their efforts to explore emerging markets. Overseas sales of Chinese brand smartphones increased to 40% in 2018. With the acceleration of the pace of ““going to sea““ of China's major brands, Transsion's dislocation market competition strategy is gradually ineffective. It will face a positive competition among several giant brands, and the competition will become more intense.