The redmi 3s is very nice phone in lookwise with premium metal body & the meaning of power at last means the good battery backup of phone which last long when I use this device. It contains battery of 4100 mah and it comes with snapdragon 430 Qualcomm 64 bit octacore processor with 2 gb of ram gives good processing. This device is having 13 mp PDAF rear camera gives good clearity images even in low lighting conditions & front camera of 5mp also gives clear selfies with natural colours. The 5 inch hd display of device is really good. So, totally it is a great phone to use.