Xiaomi redmi is having wonderful features Front camera is 8mp and back camera is 13 megapixel with flash.Android marshollow 6.0.1., hybrid sim slot etc. We can use dual sims but when we insert memory card we can use only one sim.Miui 8 apps and infrared, gps compass , glon glass, Nfc anf 4g volte, 2g, 3g is compiatabli with this device.