In 2016 fast-growing smartphone maker Huawei and legendary camera manufacturer Leica announced that they are joining forces to improve phone photography. Later that year the Huawei P9 and Huawei P9 Plus arrived on the stage. Huawei P9 Huawei P9 Plus The story actually starts back in 2013 when Huawei tried reaching out to Leica, but the camera maker declined. Huawei persisted and eventually Leica agreed to a meeting. Soon execs from the two companies realized that this would be a mutually beneficial match - Huawei wanted better cameras to make its phones more competitive, Leica...
Source: https://www.gsmarena.com/flashback_huawei_p9_and_the_beginning_of_partnership_with_leica-news-39278.php