Mac storage basics · Photos, music and video
Do Live Photos take up more space than normal photos?
Short answer: Yes — each one is a still image plus a short video, so it's larger than a still. Turn Live off in the iPhone Camera for future photos.
Yes. A Live Photo is a still image plus a short video clip, so it takes noticeably more space than a still alone. You can turn Live Photos off on your iPhone's Camera for future shots.
Existing Live Photos can be turned into stills in Photos by editing and switching Live off, but the original video part is kept unless you export a still and delete the original.