When you enable that option, the battery percentage is located next to the battery icon, therefore taking up more space in your menu bar.

The iPhone's battery indicator icon is a handy way to keep tabs on how much of a charge you have. The only problem is that, by default, it's not a very precise instrument — more like a visual ...

Step-by-step instructions on how to display the battery percentage on the iPhone's status bar and add a Batteries widget to the Home Screen.

If you want to enable or disable the line under the battery icon, it’s important to know that the line under the battery on the iPhone is a privacy feature on many iPhones.

Windows 11 KB5064093 introduces a redesigned lock screen battery icon with clearer visuals and percentage details.