Oppo K9 Pro official Pictures. Oppo K9 Pro is a Smartphone of oppo. The Oppo K9 Pro Android Smartphone. Exp. Announcement 2021, September 26. Features 6.43″ Display, MediaTek MT6893 Dimensity 1200 5G Chipset, 4400 MAh Battery, 256 GB Storage, 12 GB RAM. Oppo K9 Pro price starts.