In countries that mete out exorbitant data charges or users pay per meg high charges for WiFi connection, this feature in iOS 13 maybe most welcome. Scant information but once Low Data Mode is selected apparently the feature apparently signals apps that are high on data usage to halt background app refresh and to defer any non-compulsory actions or tasks.
How to select the mode
- Go to Settings
- Select Mobile Data
- Tap on Mobile Data Options
- Select Low Data Mode
