The key features of the smallest household camera include its compact size, lightweight design, and portability, making it easy to carry and use in various settings. Despite its small size, it offers high-resolution images and videos, with advanced technological features such as image stabilization, autofocus, and face recognition. The camera also has a long-lasting battery life and memory storage capacity, allowing users to capture and store a large amount of content. Additionally, the smallest household camera may have wireless connectivity options, enabling seamless sharing of media files with other devices. Overall, its small size does not compromise on performance and functionality, making it an ideal choice for individuals seeking a convenient and efficient camera solution.