There are 3rd party apps that claim to be able to do it on older phones, but I never tried them, and it won’t be automatic like the 11.
You should be able to do it in post processing from RAW images provided the cameras captures the same detail, with image editors like Photoshop, Darkroom, Lightroom, etc. That said, it won’t be as easy and Apple’s in-camera image processing is pretty darned good. But if Apple can do it, so can you if you are both starting with the same RAW image.