Friends this phone is too good as contains so many features in that much low price which not a sigle phone gives you in this price . It has 13mp back camera, 5mp front camera, metal mody, good sound quality, fingerprint sensor.It Os is android Os with 6.0.1(marsmallow).it has 3GB RAM and 32GB internal storage.IT based on the technology GSM/HSPA/LTE.and only in cost 9689 rs its screen size is 5.0 inches .so friends if you wants to buy a phone now so I suggest you to go through redmi 3S prime.