XAOMI REDMI 4.I am using this from last 2 months.Cool features, nice look, ultra slim, curve display, user friendlyBATTERY BACK UPTO 32 HOURS.AWESOME CAMERA.SPEED FUNCTION.2GB RAM WITH 16 GB ROM.I JUST LOVE IT. From my experience I want to suggest you to buy this phone who need good battery backup with cool features.