The maximum amount of light that can get in your camera is determined by the aperture size, meaning how large the hole in front of the sensor can open, also commonly called f-stop. Smaller f-stop means more light (as it’s a ratio)

The Realme’s regular wide-angle back camera has a maximum aperture of f/1.8, while Pixel has f/1.85. Meaning technically, they’re more or less equivalent, you shouldn’t get that much more light in so little time. This could be the Realme camera software making really shit post-processing…