Oppo A3s. The Oppo A3s boasts a 6.2-inch HD+ display and ships with 16GB of internal storage space. The device is equipped with dual 13+ 2MP rear and an 8MP front-facing shooter. There is an octa-core Snapdragon 450 chipset and 2GB of RAM.but it has no another featueres a smartphone wanted.so it is not agood phone