720p refers to a resolution of 1280×720 pixels, progressive scan. It contains roughly 921,600 pixels per frame, significantly less than 1080p (2.07 million) or 4K (8.3 million). For a dark, fast-paced war film, 720p can introduce softness in distant explosions or muddy details in trenches. However, when efficiently encoded, 720p remains watchable on tablets, laptops, and smaller TVs (under 40 inches).