Doze has already been heralded as a major success for Android users who want to keep more of their battery life for when they really need it.
Doze shuts down all nonessential functions, such as scanning for Wi-Fi or processing Facebook notifications. When your phone is not being used, Doze kicks in and sends it into a deep sleep so the device is still on, but hardly using any battery.
The only functions able to get through are priority alerts. Otherwise your mobile rests in an ultra low-power state until you need to use it. This innovation should hopefully banish the memories of Lollipop’s frustrating battery drain issues and give Android users a much longer battery life.