Hello friend, Xiaomi redmi 4A 5" screen 1280×720 pixel resolution 296 ppi pixel density, 13 mega pixel primary camera with 5 element lence & 5mega pixel front camara, anroid 6.o.1 with Miui 8 operating system, 3gb ram, 32gb memory expandble 128gb dual sim (4g+4g), 3120mAh lithim-lion battery. This mobile excellent battery backup, processing speed so high, sound quality also good, headphone sound more clear, user friendly operating system. The key features of this mobile you can two operat two different account at same time & dual 4g will give double damaka! Price of mobile very resonable or cheap. So I think anyone want this mobile go for it! But remember always buy this mobile through officials site only sometimes you may have to wait for long time but they will give best so.