Hii guys, mi a1 is the best phone .its looking osm. its design just like as I phone 7 plus. its rear dual camera has 12MP+12MP with aperature 2.2/f, detection autofocus, 2x optical zoom with dual LED and dual LED tune flash.and processor is given 2.0 GHz cortex A53 and GPU is ADRENO 506. and battery is 3080 mah with fast charging support and phone is run with 4 gb ram with 64 gb rom .i always use this phone its work good. no heating problem. and rear camera is comprison to I phone 7 plus both camera has equal.