Both are reptiles.Turtles can live comfortably in water while tortoises are land animals. A tortoise's native habitat is Asia, Africa and some in the Americas and turtles are found in Africa and America. Tortoises have dome-shaped shells while turtles' shells are more flat. Tortoises are herbivores, turtles are omnivores. Tortoises have short, bent legs and turtles have webbed feet with long claws.