This phone is very reliable. Its battery backup is 3000 mAh. Radio is also provided and sound quality is too good.connectivity has 2g and 3g and it has bluetooth system for easy sharing. GPS is also provided in this phone. Front camera is of 5 mp and rear camera is of 13 mp. it has 16 gb internal memory and 1.5 gb RAM. Operating systen id android with lollipop. I like this phone because ut has awesome features and it works very smoothly so guys please buy this and thank for reading my review.