I bought xiaomi mi a1 on 22nd February , 2018. From my experience I have to say that this is the best android one device under 15k price launched by Mi. Its a android one device with stock android system coming with android version Nougat.( 7.1) with a very beautiful smooth android experience. firstly main specs are that, Xiaomi Mi A1 is powered by an octa-core super fast Qualcomm Snapdragon 625 processor. The clockspeed with 2GHz and is with 4GB of RAM giving healthy ram optimization. There is 64GB of storage, and expansion is possible using microsd card to 128gb. you will experience the Google pixel software service. About the cemera, I surprised to say that the dual rear camera experience is just awesome with both 12 megapixels. one cemera having a wide lense and the other have telephoto lense, by which you can blurred the background nicely.This phone has a hybrid dual-SIM design which means you have to choose between using two Nano-SIMs or one Nano-SIM and a microSD card.