When choosing between a Hamster vs Guinea Pig, consider your space, budget, and lifestyle. Hamsters thrive in small spaces, cost less ($15–20 plus ~$100 setup), and suit busy owners with their independent nature. However, their short 2–3 year lifespan and nocturnal habits limit daytime bonding. Guinea pigs offer 5–7 years of companionship, are active during the day, and need larger cages (7.5+ square feet). They cost more ($25–40 each) and require a companion for social well-being.https://petwildlife.com/hamster-vs-guinea-pig/