What feature makes Sonic devices user-friendly?

Touchscreen interfaces significantly enhance user-friendliness due to their intuitive design and ease of navigation. With a touchscreen, users can interact directly with the device by tapping, swiping, or scrolling, making it straightforward to access various functions and settings. This direct manipulation allows for a more engaging experience, as users can see and control what they are doing without having to navigate through multiple physical buttons or controls. The visual feedback provided by the touchscreen also aids in understanding the device's operations, leading to a smoother learning curve for new users. As a result, touchscreen interfaces represent a modern approach to user interaction that aligns well with contemporary expectations for simplicity and efficiency in technology.