Chosen Solution

I have been wondering if the Note 20 Ultra’s periscope/telephoto lens look like, size wise, to the S20 Ultra’s since to me they look similar but the amount of megapixels are different. Would I be able to swap the Note’s 12MP lens with the S20’s 48MP lens, or are they really different in size?

I would imagine they’re quite different cameras and they’re probably made by different manufacturers. Samsung will have a few variants of each model that use cameras from different manufacturers and you can’t swap them. If you want the better camera then you’ll have to shell out the money for a new device.