F4 Savannahs are the great-great-grandchildren of the African serval, typically representing the fourth generation of hybrid breeding.

At this stage, many—but not all—F4s qualify as SBT (Stud Book Tradition), meaning they have at least three consecutive generations of Savannah-to-Savannah ancestry with no recent outcrosses. in other words, they are a pure bred Savannah cat. SBT-status F4s are recognized as fully domestic under TICA guidelines and may be shown in cat shows. They retain the exotic look of their wild heritage but with the temperament, adaptability, and socialization of a domestic companion—making them one of the most balanced, captivating choices for families and enthusiasts alike.

How Big Do F4 Savannahs Get?
Savannah cat size varies significantly depending on genetics — especially recent serval lineage and the size of the parents. While some generalizations exist, no breeder can guarantee how large a kitten will grow. F4 females typically weigh between 8 and 15 pounds, while F4 males often range from 12 to 18 pounds. Larger individuals are possible but uncommon. Breeders can offer educated guesses based on previous litters from the same pairing, but size outcomes can still vary considerably, even within the same litter.