Xiaomi Mi A2 64gb phone works operating system of Android v.8.1( oreo) .This phone comes dual sim and with 2G 3G And 4G network.This phone, s diplay sige is 5.99 inches LCD display who very good and resolution 1080× 2160 pixel.Weight of Xiaomi A2 is 168g who is few more. This mobile phone comes with 4gb RAM. Therefore this mobile is very fast.Its rear camera is 20mp+ 12mp with flash and and front camera 20mp led flash which is very nice.