Screens are flat surfaces that display visual information, typically in the form of images, videos, or text. They are commonly found in electronic devices such as smartphones, tablets, computers, televisions, and even wearable devices like smartwatches. The circular screen, in particular, refers to a screen that has a circular shape instead of the traditional rectangular or square shape. Circular screens have gained popularity in recent years due to their unique aesthetic appeal and practicality in certain applications. They offer a different visual experience compared to rectangular screens, providing a more immersive and engaging viewing experience. Circular screens are often used in smartwatches, where the circular shape complements the design of the wearable device and allows for easy navigation through various functions. Despite their advantages, circular screens also have limitations. One of the main challenges is content adaptation. Most digital content, such as images and videos, are designed for rectangular screens. Therefore, displaying such content on a circular screen may require cropping or resizing, which can result in a loss of information or distortion. Additionally, circular screens may have limited space for displaying text, making it challenging to present large amounts of information effectively. In conclusion, screens are flat surfaces that display visual information, and circular screens offer a unique aesthetic appeal and practicality in certain applications. However, they also come with limitations, such as content adaptation and limited space for text.