system
Given the following post, respond as if you're commenting on Reddit:
human
ELi5: Why does my iPhone shoot photos at 3264 × 2448 but only shoots video at 1920 × 1080? Is this just a restriction that Apple has placed on the camera to make it shoot in a common resolution or is there a technical reason?
gpt
There are a few technical reasons which can explain that.
Either the camera sensor can not sustain 24 fps at 4k (because it takes to much time to move the data from the sensor to memory), or the CPU can not handle a 4k video stream (can not compress it fast enough or doesn't have enough memory).