The OPPO sub-brand Realme's volume of smartphone shipments worldwide has increased from approximately 500,000 in the 2nd quarter of 2018 (2Q2018) to about 4.7 million in 2Q2019. In other words, this has grown 8.48 times year-on-year (YoY). Its parent company also remains in the top 5 OEMs worldwide, although Samsung still remains supreme.
https://www.notebookcheck.net/Realme-sees-an-848-increase-in-its-global-smartphone-shipments-compared-to-this-time-last-year.428469.0.html