That is true, they both look almost identical. I have bought some Amitabha statues, but use them for my purposes as images of Buddha since they are so similar in appearance.
Usually both Amitabha and Buddha have the dot between the eyes, representing the 'third eye' of enlightenment or the 'Divine eye.'
Amitabha usually has his hands forming two circles in his lap. Whereas the Buddha is usually depicted with the teaching mudra or in the 'earth witness' where one hand is reaching for the ground when the earth witnessed his enlightenment.
Amitabha, with hands forming two circles