Hey guys I buy redmi 3s and I am tell you about this in this phone have qualcomm snapdragon 430 octa-core processor and 1280* 720 HD ips display and also in this phone have 13 mp rear camera with PDAF, but front camera is 5 mp that not good have clear photographs and 4000/4100mAh lithium-ion polymer battery this is good for this phone and completely work for 1 day. It was based on os and MIUI Android . And in the box redmi 3s box have , adapter , one usb cable , user guide, warranty card, and in this phone one new feature was remote control due to this we easly control our TVs , air coolers , and other thing and in this phone also have compass this app is use to know about directions .other wise the phone is good and the prise was also good