Both Great Northern beans and navy beans are similar but there is a difference between the two and they are not the same thing.
The main difference between great northern beans and navy beans is that the navy beans are smaller than the great northern beans are.
The navy beans are also slightly plumper and have thicker skins than great northern beans are.
Both navy beans and great northern beans are oval shaped beans but they the great northern beans are a bit larger in size than navy beans are.
They also usually have a slightly different taste to each of the types of beans.