Apple iPhone 8
Turn low data usage on or off
You can set your phone to use less data for different functions, such as download and playback of high quality content, app updates and more.
Press Settings.
Press Mobile Data.
Press Mobile Data Options.
Press the indicator next to "Low Data Mode".
Press the Home key to return to the home screen.
1. 1. Find "Mobile Data Options"
2. 2. Select settings for data usage
3. 3. Return to the home screen