Male okapis weigh between 200 and 250 kg (440 to 550 lbs) and stand about 1.5 to 1.8 m (5 to 6 ft) tall at the shoulder.
Male okapis are generally slightly smaller than females, with shorter legs and necks. They also have larger, more visible ossicones (horns) on their heads than females, which they use for fighting and display during mating season. Male okapis are also known for their distinctive "oily" odor, which is produced by scent glands on their feet and helps them communicate with other members of their species.