Many mobile devices have hidden or less-known features and settings that can be useful. Here are some examples of hidden or lesser-known options on mobile devices:


1. Developer Options: This is a menu in Android devices that provides access to advanced settings and debugging features. To enable Developer Options, go to Settings > About Phone and tap on the build number several times.


2. System UI Tuner: On some Android devices, you can access System UI Tuner by holding down the gear icon in the Quick Settings menu for a few seconds. This allows you to customize certain aspects of the user interface.


3. Battery Usage Details: In both Android and iOS devices, you can usually find detailed information about battery usage by going to Settings > Battery. This can help you identify which apps are consuming the most battery power.


4. Hidden Gestures: Some smartphones have hidden gesture controls that allow you to perform actions like taking screenshots, opening apps, or silencing calls with specific gestures. Check your device's settings or user manual for more information.


5. Hidden Menus: Some mobile devices have hidden menus that can be accessed by dialing specific codes. These menus may contain options for testing the device's hardware, accessing additional settings, or performing troubleshooting tasks. Be cautious when using these menus as they can affect the device's functionality.


6. Accessibility Settings: Both Android and iOS devices offer a range of accessibility features that are often tucked away in the settings menu. These features can help users with disabilities navigate their devices more easily or customize their experience.


Remember to explore these hidden options carefully and avoid making changes that could potentially harm your device or violate its terms of use.