The fruit varieties known as Granny Smith and Fuji are both types of apples. Granny Smith apples are known for their bright green color and tart flavor, originating from Australia in the late 19th century. They are often used in baking and cooking. Fuji apples, developed in Japan, are a cross between Red Delicious and Ralls Janet apples. They are characterized by their sweetness, crisp texture, and juiciness, making them a popular choice for fresh eating. Both varieties are enjoyed worldwide and are cherished for their unique tastes and versatile culinary uses.