Oppo a31 vs redmi 9 July 8, 2019 16 32 64 128 Redmi note 9 vs oppo a31 Oppo a31 vs redmi note 9 pro Oppo a31 ram 6 vs redmi note 9 Oppo a31 2020 vs redmi note 9 Oppo a31 vs redmi 8 Oppo a31 vs redmi note 8 Oppo a31 vs redmi note 7