The wild cat's domesticated cousin, the Singapura, is the smallest cat breed ... Singapuras are small and muscular. Adult females weigh between 4 and 5 pounds, while males weigh about 6 to ...

Cats, on the other hand, have way less variation. The Singapura cat weighs about eight pounds, while the largest domesticated cat breed, the Maine coon, only goes up to about 20 pounds.