It is a mobile phone produced by OnePlus Technology. OnePlus 9 Pro uses a 6.7-inch AMOLED punch-hole screen on the upper left. The body length is 163.2 mm, the width is 73.6 mm, the thickness is 8.7 mm, and the weight is 197 grams. It comes with three body colors: Oasis, Black Hole, and Flash Silver. It is OnePlus The mobile phone released by Technology on March 24, 2021, will be launched on March 30, 2021. OnePlus (full name: Shenzhen OnePlus Technology Co., Ltd., OnePlus in English) is a Chinese mobile communication terminal equipment research and software development company. It was established on October 14, 2012 under the leadership of Liu Zuohu and Pei Yu. Its products were Sales in many countries around the world. In 2013, Liu Zuohu and Pei Yu jointly announced the official establishment of OnePlus. OnePlus reached an exclusive licensing agreement with CyanogenInc to base the Android distribution of its products on a variant of the popular custom ROM-CyanogenMod and use it outside China. trademark. In 2014, OnePlus released the OnePlus mobile phone.