The root is understood as simply changing user rights on Android device, usually, if we use Android with user rights, after root you can use Android with administrative rights.
Root does not make your device more powerful, but it can help you remove software that is preinstalled by network operators and manufacturers. In addition, it can help you intervene and edit in the system.
Besides the benefits, the root also has risks. First of all, it is difficult for you in the warranty mode of equipment, many companies refuse warranty with a rooted device, in addition, root can cause system error so if not really necessary, you should not root.