A new report by Kantar World Panel indicates that the number of iPhones sold in Europe in the third quarter of 2018 fell by 1.6%. This may have been driven by increased competition from Xiaomi and Huawei. These brands are also now contending with more established brands such as Samsung in the region.
https://www.notebookcheck.net/Apple-is-losing-its-European-market-share-to-Xiaomi-and-Huawei-new-report.357706.0.html