1. Sperm is motile, long and is divided into head, neck, tail and middle part but ovum is non motile sphere in shape and are not divided .2. Sperm is very small in size but ovum is large in size.3. Sperm is movable but ovum is not movable.4. sperm is produced in testis whereas ovum is produced in ovary.5. Sperm conatins X and Y chromosome but ovum contains only X chromosome.
About five differences
Sperm is a male gamete which is produced in testis of male whereas ovum is female gamete produced in ovary of female.