Seeded watermelons are oblong with firm brown, or black, seeds and red flesh.
Seedless watermelons are round, sometimes with small white seeds that are soft, with red flesh. The small white “seeds” in a seedless watermelon are empty seed coats that will never produce seeds. Seedless watermelons are created naturally by crossing male pollen for a watermelon with a female watermelon flower. This process does not involve genetic modification.
Mini watermelons are smaller than seedless, but still round, and come either seedless or seeded.
Yellow watermelons are large and round, tasting the same as the red variety.