With data usage costs being a huge concern for users in developing markets, Oppo has included a Data Saving app to control the amount of data consumed by apps running in the background. You also can see the background data usage ranking of apps.
When you activate Data Saving, apps in the background are not allowed to consume network data, power and CPU. You have the option to select which apps to add to the Trusted List to receive notifications.
If you are on a tiered mobile data plan, Data Saving will come in handy.