If u going to buy a new mobile then u have to see that the phone features that u select can fullfill your all needs and demand. Be sure about your need what u want. Always choose the phone with good sound reception, processor and camera quality etc. Always choose a mobile which is not going to hang very fast. Hanging of phone always a problem but be sure that always choose a mobile with best processor and storage of ram. Now a days there a craze out there for selfies in people .be sure that the image quality is HD in camera. Most important thing is always choose a phone with long battery backup.