The iPhone makes it easy to save data and battery power by turning on the Low Data and Low Power modes. Here's how to find and use them — and what happens when they're on.

Mac 911 iOS 13: How to use Low Data Mode to slim your consumption A feature formerly part of Low Power Mode can be used for Wi-Fi and cellular connections.

Apple understands that some iPhone and iPad users may prefer to keep tabs on their cellular network data usage, especially if they risk incurring ...