What is the difference between iPhone 1200w pixel and 4800w pixel shooting HD video of the same specification?

When shooting high-definition video, the number of pixels is not the only determinant. Some very important factors of video quality are the size and quality of sensor, the quality of lens, video coding and processing, etc. However, the number of pixels does have a certain impact on the image quality.

The difference between1200 w (12 million pixels) and 4800 W(4800 million pixels) mainly lies in the details of the captured image. Higher pixels mean more details can be captured, which is especially obvious when taking pictures. But when shooting high-definition video, this difference may not be so obvious.

HD video resolution is usually divided into the following categories:

720p (1280x720 pixels)

1080p (1920x1080 pixels)

4K UHD (3840x2 160 pixels)

Even with a resolution of 4K·UHD, it only needs 8.3 million pixels. Therefore, in theory, 1200w pixel is enough to shoot 4K UHD video. However, when shooting high-definition video, 4800w pixels may not have obvious advantages over 1200w pixels.

Generally speaking, from 1200w pixels to 4800w pixels, the image quality improvement may not be obvious when shooting high-definition video. More importantly, pay attention to the performance of sensors, lenses and video processing. In addition, in practical applications, cameras with higher pixels may perform better in low light environment or high contrast scenes, but this also depends on other hardware and software factors.