XIAOMI REDMI 1S is the bad phone.it runs through a processor of quadcore 1.6 ghz cpu with an operating system of anriod v4.3 jeally bean version.it has a camera of 8 mega pixel which does not have tendency to capture decent pictures.with a battery of 2000 mah doesnot have good backup lasts only 6 hours.looks are not attractive.sound system is waste quality dont have good loudspeakers buildin.display is not solid.it has a ram of 1 gega bytes and an internal memory rom of 8 gega bytes which is very less comparing its price.therefore this is not the best of phone its not worthy of buying.thanking you.