I haven't looked in a minute but 0.3MP (640x480) cameras were quite common just a few years ago on budget laptops. Often webcams can achieve higher FPS at lowe

I haven't looked in a minute but 0.3MP (640x480) cameras were quite common just a few years ago on budget laptops. Often webcams can achieve higher FPS at lower resolutions, so specifying 720p @ 15FPS prevents them from shipping a 720p sensor that does say 15FPS but only at 320x240.