The device commonly used for capturing images and videos in smartphones is a camera. Modern smartphones are equipped with advanced camera systems that include multiple lenses, sensors, and features like optical image stabilization and computational photography. These enhancements allow users to take high-quality photos and videos, making smartphones a preferred choice for casual photography and social media sharing. Additionally, smartphone cameras often come with editing tools and connectivity options, enabling instant sharing and editing, further solidifying their role in daily communication and documentation.