Hamster vs Mouse as a Pet: Which One to Choose?

If you’re considering owning a small pet, you may be wondering whether a hamster or a mouse is the better choice. Both of these tiny creatures are popular pets, but they do have some differences that might make one more suitable for your lifestyle than the other.

In this blog post, we’ll explore the physical and behavioral differences, housing requirements, health and care, costs and availability, and pros and cons of owning a hamster versus a mouse.

Physical and Behavioral Differences

Appearance and size

Hamsters are larger and more robust than mice, with a body length of up to 6 inches (15 cm) and a weight of up to 7 ounces (200 g). Mice are smaller and more delicate, with a body length of up to 4 inches (10 cm) and a weight of up to 1 ounce (30 g). Hamsters have short, stocky bodies and chubby cheeks, while mice have long, slender bodies and pointed faces.

Dietary needs

Both hamsters and mice are omnivores, meaning they eat both plant and animal matter. However, their specific dietary requirements differ. Hamsters require a diet that is high in protein and fiber, with a mix of seeds, grains, fruits, and vegetables. Mice, on the other hand, need a diet that is high in protein and low in fat, with a mix of seeds, grains, and fruits. It’s important to provide fresh food and water every day and to avoid overfeeding, as both hamsters and mice are prone to obesity.

Activity level and exercise requirements

Hamsters are more active and energetic than mice, and they require more space to run and play. They need a wheel or other exercise equipment in their cage in order to maintain their health and prevent boredom. Mice are more agile and can climb and jump more easily than hamsters, but they are also more timid and may prefer to spend their time hiding or burrowing.

Social behavior and interaction with humans

Hamsters are solitary animals and prefer to live alone, while mice are social and enjoy the company of other mice. Hamsters can be tamed and may enjoy interacting with their owners, but they are generally less social than mice. Mice are also more intelligent and can be trained to perform tricks or respond to certain cues.

Housing Requirements

Cage size and setup

Both hamsters and mice require a cage that is large enough for them to move around in and engage in natural behaviors like running, climbing, and burrowing. A good rule of thumb is to provide at least 2 square feet (0.2 square meters) of floor space for a hamster and at least 1 square foot (0.1 square meters) for a mouse. The cage should be well-ventilated and escape-proof, with a solid bottom and a secure lid.

Bedding options

Hamsters and mice both require bedding that is soft, absorbent, and non-toxic. Popular bedding options include paper-based bedding, wood shavings, and hay. It’s important to avoid cedar and pine shavings, as they can be harmful to small animals.

Temperature and humidity needs

Hamsters and mice are both sensitive to temperature and humidity extremes. They prefer a temperature range of 60-80 degrees Fahrenheit (15-27 degrees Celsius) and a relative humidity of 40-70%.

Cleaning and maintenance

Both hamsters and mice require regular cage cleaning and maintenance to prevent odors and disease. The cage should be spot-cleaned daily and completely cleaned and disinfected every week. Bedding should be changed at least once a week, and food and water dishes should be cleaned and refilled regularly.

Health and Care

Common health issues in hamsters and mice

Both hamsters and mice are prone to certain health issues, including respiratory infections, dental problems, and digestive issues. It’s important to observe your pet for signs of illness, such as lethargy, loss of appetite, or changes in behavior, and to seek veterinary care as needed.

Grooming and hygiene

Hamsters and mice are generally clean animals, but they do require some grooming and hygiene care. Hamsters can be bathed using a special animal shampoo, while mice should be spot-cleaned with a damp cloth. Both pets require regular nail trimming and tooth filing to prevent overgrowth.

Handling and taming techniques

Hamsters and mice can both be tamed with patience and positive reinforcement. It’s important to handle your pet gently and consistently, using treats and rewards to encourage good behavior. It may take some time for your pet to get used to being handled, but with practice and persistence, you can build a bond of trust and affection.

Veterinary care and expenses

Like all pets, hamsters and mice require regular veterinary check-ups and medical care. It’s important to budget for these expenses, which may include vaccinations, spaying or neutering, and treatment for illnesses or injuries. It’s also a good idea to research veterinarians in your area who specialize in small animal care.

Costs and Availability

Initial purchase and setup costs

The cost of a hamster or mouse and its cage and accessories can vary depending on the breed and where you buy it. On average, a hamster can cost between $10 and $20, while a mouse can cost between $5 and $10. The cost of a cage and accessories can range from $50 to $100 or more.

Ongoing expenses (food, bedding, toys)

The cost of feeding and caring for a hamster or mouse can also add up over time. Food, bedding, and toys can cost anywhere from $10 to $50 per month, depending on the quality and quantity of the items.

Availability of different species and breeds

Both hamsters and mice come in a variety of breeds and colors, each with its own unique characteristics and personality traits. Some popular hamster breeds include Syrian, dwarf, and Chinese hamsters, while popular mouse colors include fancy, white, and black mice. It’s important to research the specific needs and temperament of each breed before making a decision.

Where to buy or adopt

Hamsters and mice can be purchased from pet stores, breeders, or online retailers. It’s important to choose a reputable source and to avoid buying from pet stores that source their animals from mills or other unethical suppliers.

Adopting a hamster or mouse from a rescue organization or animal shelter is also a great way to provide a loving home for a pet in need.

Pros and Cons of Owning a Hamster or Mouse

Advantages and disadvantages of each species

Hamsters are low-maintenance pets that are easy to care for and can be trained to use a litter box. They are also relatively quiet and don’t require as much social interaction as mice. However, they are more prone to health issues and may be less social and interactive than mice.

Mice are more social and interactive than hamsters, and they enjoy playing and exploring. They are also generally healthier and have longer lifespans than hamsters. However, they require more attention and interaction from their owners and may be more prone to escape attempts.

Considerations for families with children

Both hamsters and mice can make great pets for families with children, but it’s important to supervise interactions and teach children how to handle and care for their pets properly. Hamsters may be better suited for younger children, as they are less fragile and require less attention than mice.

Comparison to other small pets (guinea pigs, rats, etc.)

If you’re considering a small pet, you may also be weighing the pros and cons of other options, such as guinea pigs, rats, or gerbils. Each of these pets has its own unique needs and characteristics, so it’s important to do your research and choose the one that best suits your lifestyle and preferences.


In conclusion, both hamsters and mice can make great pets for the right owner. If you’re looking for a low-maintenance pet that is relatively quiet and independent, a hamster may be the way to go. If you’re looking for a more social and interactive pet that requires more attention and interaction, a mouse may be a better fit.

Ultimately, the decision of which pet to choose should be based on your lifestyle, preferences, and ability to provide a loving home for your new furry friend.

ThePetFaq Team