One of the key differences between guinea pigs and rabbits is their size. Guinea pigs are generally smaller than rabbits, making them a better choice for pet owners with limited space. Guinea pigs also have different dietary needs than rabbits, requiring higher levels of vitamin C in their diet to prevent scurvy.

Guinea pigs and rabbits are both social animals who require same-species companionship. Rabbits tend to be more difficult to bond and more destructive, but cleaner. Guinea pigs are easier to handle and require less space, but they do have shorter lifespans.

Rabbits are significantly larger than guinea pigs in terms of height and weight. Additionally, they have more personality, and in turn, are more demanding to take care of. For this reason, guinea pigs are a better option if the person that’ll be taking care of the pet is a child.