When it comes to global active smartphones, Samsung and Apple had a collective market share of more than 50% for years. That changed in September 2018, when the two tech giants made up 49.9% of the global smartphone market. While the companies still have a duopoly, the\u00a0Global Smartphone and Tablet Tracker\u00a0show that their collective market shares dropped from 52.3% in September 2017 and 56.5% in September 2016. This is because Chinese brands Oppo, Huawei, Xiaomi, and Vivo are slowly but surely increasing their respective market shares. Chinese manufacturers accounted for more than 1.2 billion of the world\u2019s active smartphones in September 2018.\u00a0Earlier this year, the report correctly forecast that the number of Chinese smartphones would exceed 1 billion by the end of 2018. Oppo Sets Its Gaze on Overseas Markets but Still Relies on\u00a0China \tIn September 2018, the two most popular brands by active smartphones were\u00a0Samsung and Apple, with market shares of 26.2% and 23.7%, respectively. \tTwo years earlier, Samsung had a market share of 30.6%, while Apple had 25.9%,\u00a0so the effect of the growing Chinese companies is more visible for Samsung. \tThe #3 brand was Oppo, which had a market share of 10.4% in September 2018 \u2014 compared to 7.6% in September 2017. \tOppo\u2019s most important market is its home country,\u00a0China, where 72.3% of active Oppo smartphones were located. \tHowever, India (11.2% of active Oppo phones) and Southeast Asian countries such as Indonesia (4.6%) are becoming increasingly important for the Chinese manufacturer, helping it increase its market share. Huawei and Xiaomi Successfully Tap into the Non-Chinese Markets \tOppo\u2019s reliance on its home market is in stark contrast with competitor\u00a0Huawei, the #4 brand globally, with a market share of 8.7%\u00a0in September 2018. \tHuawei is focusing more and more on countries such as Russia (3.8% of its active smartphones), Italy (3.1%), and Germany (2.9%). \tImpressively,\u00a0less than half (42.4%) of Huawei\u2019s active smartphones were located in China\u00a0in September 2018. \tXiaomi was the #5 brand, boasting a market share of 8.5% \u2014 an increase from the company\u2019s 6.3% market share in September 2017. \tIn Q3, Xiaomi was more reliant on India than ever before. A remarkable\u00a033.2% of Xiaomi\u2019s active smartphones were in India, compared to its 37.8% active in China. \tVivo is the #6 brand, with a market share of 7.1%\u00a0(up from 5.2% in September 2017). Things Still Look Bright for Samsung and\u00a0Apple \tAlthough Samsung\u2019s and Apple\u2019s respective market shares are decreasing, the two companies are still performing well, increasing their total number of active smartphones on the market. \tDespite a\u00a0relatively slow start, the latest Samsung flagship smartphones (Galaxy S9 and S9 Plus) fared better in Q3, when they were world\u2019s fastest-growing models. \tMeanwhile, Apple\u2019s smartphone installed base also increased between Q2 and Q3 this year. \tTwo of Apple\u2019s new flagships (iPhone XS and XS Max) were released at the end of the quarter, with the third (iPhone XR) launching in October. Q4 is due to increase Apple\u2019s installed base even further.