Here on Galaxus a photo resolution of 48 megapixels is stated, but in practically all videos about the drone 12 megapixels are mentioned. Which information is correct now?
The DJI Mini 3 actually has a 12-megapixel sensor, but it can take 48-megapixel photos via software interpolation.
This means:
The camera sensor is physically 12 MP (1/1.3" CMOS sensor). DJI uses a technology called Quad Bayer Filter, which either captures more light (12 MP) through pixel binning or generates a calculated 48 MP resolution. DJI's technical specifications officially state 12 MP as the native resolution, while 48 MP exists as an optional photo mode.
This means that if you want real sensor resolution: 12 MP is correct. If you need larger images: 48 MP is an extrapolated software version.