720p video refers to a high-definition (HD) resolution that measures 1280 pixels in width and 720 pixels in height. The "p" stands for "progressive scan," meaning that each frame is drawn sequentially, providing a smoother image compared to interlaced formats. This resolution is commonly used for television broadcasts, streaming services, and online videos. 720p is often considered the minimum standard for HD content, offering a clearer picture than standard definition (SD) formats. It is widely supported by various devices, including smart TVs, computers, and mobile devices, making it a popular choice for viewers seeking better video quality without requiring excessive bandwidth.