Although French bulldogs and Amerian bulldogs come from the same lineage, they have very different appearances. Frenchies are smaller — averaging 10 to 12 inches and weighing up to 30 pounds. They have large, bat-like ears that are much larger than their heads, whereas the American bulldog has a bigger face and ears that are more proportionate to their heads.
Frenchies are also social extroverts bred to be Aristocratic lap dogs, unlike the American bulldog, which is tough and resilient. Frenchies do not require much space and can happily live in small apartments, American bulldogs need a larger home with plenty of room.