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Guinea Pigs vs Hamsters: Which Small Pet Is Best For You?

If you’re looking for the ultimate guide on choosing between guinea pigs and hamsters as your new furry friend, you’ve come to the right place. These adorable pets have captured the hearts of pet lovers around the world. In this article, we’ll look into the differences between guinea pigs and hamsters and the key factors to consider when deciding between these two pets.

Table of Contents

Physical characteristics and lifespan

Guinea pigs come in various shapes, sizes, and coat types, ranging from smooth-haired to long-haired varieties like the Abyssinian, Peruvian, and Silkie breeds. These lovable rodents have a sturdy build, round bodies, and expressive faces that make them utterly endearing. 

Hamsters, on the other hand, have a diverse range of physical features depending on their breed, such as the Syrian, Dwarf, and Roborovski hamsters. They are known for their small size, furry bodies, and distinctive cheek pouches. While guinea pigs typically live for around 4 to 8 years, hamsters have a shorter lifespan of 2 to 3 years on average, making guinea pigs a longer-term commitment.

Are hamsters or guinea pigs more friendly?

If you’re seeking a sociable pet that enjoys human interaction, guinea pigs are the winners in this category. They are naturally social animals and thrive in the company of their owners. Guinea pigs are known to form strong bonds with their human companions and enjoy being handled, cuddled, and even talked to. They have friendly and docile personalities, making them a great choice for families with children. 

In contrast, hamsters are more independent by nature. While they can bond with their owners and become accustomed to being handled, they may not crave the same level of attention and interaction as guinea pigs. Hamsters are typically more active during the evening and night, which may suit individuals who prefer observing their pet’s antics from a distance.

Space and housing requirements

When it comes to space, guinea pigs require a bit more room to roam compared to hamsters. Due to their active nature and desire for exercise and exploration, guinea pigs require a generously sized and spacious cage. A minimum cage size of 8 square feet for one or two guinea pigs is the very minimum required but 10 square feet minimum is recommended. 

Guinea pigs are social animals and should ideally be kept in pairs to prevent loneliness. 

On the other hand, hamsters can do well in a more compact enclosure. The Blue Cross animal charity in the UK recommends a minimum cage size of 100cm x 50cm x 50cm (40x20x20 inches) That’s about 5.5 square feet.

Both guinea pigs and hamsters can enhance their mental stimulation and enjoyment with the use of additional accessories such as hideouts, tunnels, and toys. However, it is crucial to ensure the safety and suitability of these items by consulting reliable sources that prioritise the wellbeing of these pets. Unfortunately, many toys available for purchase may not be appropriate or safe for them.

Do guinea pigs or hamsters smell?

Both guinea pigs and hamsters are relatively odourless pets. Guinea pigs typically have a mild scent that is often described as hay-like or grassy. This natural odour is a result of their diet, which consists of fresh vegetables and hay. Similarly, hamsters are generally odourless pets, provided their cages are kept clean.

So, whether you opt for a guinea pig or a hamster as your new pet, with proper care and hygiene, you can enjoy their company without worrying about unwanted odours.

Diet and nutrition

Guinea pigs have specific dietary needs that require careful attention. They are herbivores and need a constant supply of fresh grass hay, such as timothy hay, to maintain proper digestion and wear down their continuously growing teeth

guinea pigs in an extra large enclosure eating fresh forage

Alongside hay, guinea pigs also require a daily serving of fresh vegetables, including leafy greens like kale, spinach, and romaine lettuce or safely foraged weeds and plants

Additionally, they should be provided with a small amount of guinea pig pellets to ensure they receive essential nutrients. Guinea pigs have a unique dietary requirement for vitamin C since they are unable to produce it themselves. To prevent deficiencies, it is important to supplement their diet with fresh foods rich in vitamin C, such as peppers and parsley or fresh forage

On the other hand, hamsters have a varied diet that includes seeds, grains, fruits, and vegetables. Commercial hamster food mixes are available and should be supplemented with fresh produce. 

It’s important to research which fresh foods are suitable for whichever pet you choose to avoid the dangers of feeding anything that may harm them.

Exercise and enrichment

Both guinea pigs and hamsters have active natures and require regular exercise and mental stimulation to stay healthy and happy. Guinea pigs benefit from free-roaming time outside their cage in a secure, supervised area or in a large safe run. This allows them to stretch their legs, explore their surroundings, and indulge in some playful interactions with their owners. 

Providing guinea pigs with tunnels, ramps, and hideouts within their cage offers additional opportunities for exercise and enrichment. They also enjoy interactive toys that encourage their natural curiosity, such as suitable they can nibble on or a treat ball that they can push around.

Hamsters, being natural burrowers, require a wheel in their cage to satisfy their need for physical activity. But not all wheels are suitable. It should be an appropriately sized, solid-surface wheel allows them to engage in vital cardiovascular exercise. 

In addition to a wheel, hamsters benefit from tunnels and tubes that mimic their instinctive burrowing behaviour. These provide mental stimulation and create a stimulating environment for them to explore. It’s essential to select toys and accessories that are safe for their small size and avoid materials that may pose a choking hazard.

Health considerations

When it comes to health, guinea pigs and hamsters have specific considerations. Guinea pigs are prone to certain health issues, such as dental problems and respiratory infections. Their teeth continue to grow throughout their lives, so providing them with sufficient hay helps prevent dental issues. 

As guinea pigs are also susceptible to respiratory infections, it’s important to maintain a clean living environment with suitable bedding and avoid exposing them to drafts or extreme temperatures. Regular vet check-ups and a balanced diet are crucial for their overall well-being.

Hamsters, on the other hand, are more prone to conditions such as wet tail, a bacterial infection that affects the digestive system and can be fatal if left untreated. Maintaining good hygiene and providing a clean, dry living environment is vital in preventing this disease. Regular spot cleaning of their cage and replacing bedding is essential. 

Additionally, hamsters are known to have sensitive skin, so it’s important to avoid using harsh bedding materials or dusty substrates that could cause irritation.

black and tan short-haired smooth guinea pig

Maintenance and care

When it comes to maintenance and care, guinea pigs require a bit more attention compared to hamsters. Guinea pigs have specific grooming needs, including regular nail trimming and brushing, especially for long-haired breeds. Their coats require gentle care to prevent matting and skin issues. Regular cage cleaning and changing bedding are necessary to maintain a clean and healthy environment for guinea pigs.

Hamsters, being more self-sufficient, have lower maintenance needs. They groom themselves by licking their fur clean. However, regular cage cleaning and spot cleaning of soiled areas are still important to prevent odours and the buildup of bacteria. Fresh bedding should be provided regularly to maintain cleanliness.

Interaction with children

Guinea pigs are generally great companions for children and can be a valuable part of their upbringing. Their friendly and docile nature makes them suitable for gentle handling and interaction. However, it’s important to supervise young children to ensure they handle guinea pigs properly and with care. 

Hamsters can also be suitable for children, but they may be more fragile compared to guinea pigs. Their small size and delicate nature require gentle handling and interaction. Children should be taught how to hold and interact with hamsters in a calm and careful manner. 

Which pet should I choose: Guinea pigs or hamsters?

Choosing between guinea pigs and hamsters ultimately depends on your personal preferences and circumstances. 

long haired honey coloured silkie guinea pig

If you’re seeking a social, interactive pet that thrives on companionship, a guinea pig may be the perfect choice. Their friendly and docile nature, along with their suitability for children under adult supervision, make them a wonderful addition to the family. 

However, if you prefer a more independent and low-maintenance pet, a hamster could be the ideal match. Hamsters are self-sufficient, requiring less handling and grooming. Their smaller size and lower lifespan may suit those looking for a pet that requires a shorter commitment.

Consider the factors we’ve discussed, such as temperament, space requirements, diet, and health considerations, to make an informed decision that will bring joy and companionship into your life. Remember to assess your own lifestyle, the time you can dedicate to your pet, and the preferences of your household members. Additionally, take into account the age and responsibility level of children in the household, as well as the compatibility with other pets.

Before making your final decision, it’s always a good idea to interact with both guinea pigs and hamsters firsthand. We strongly suggest paying a visit to a rescue centre rather than a pet shop, as they will have a greater depth of knowledge regarding the appropriate care and well-being of these pets.

Observe their behaviour, ask questions, and get a sense of which one resonates with you and your family the most.

Where can I get a guinea pig or hamster?

We highly recommend getting guinea pigs or hamsters from a rescue centre. By doing so, not only will you gain access to professional advice from experts with extensive hands-on experience with these pets, but you will also offer a home to an animal that truly requires one, instead of contributing financially to a pet shop that may obtain their pets from unethical sources.

Whichever small pet you choose, remember that proper care, attention, and love are essential for their well-being. Treat them with kindness, provide a safe and comfortable environment, and enjoy the rewarding experience of looking after a lovable small pet.

Monique Hanford

Monique Hanford

Monique Hanford is a trusted guinea pig expert and founder of Guinea Piggles, one of the UK’s leading resources on guinea pig welfare. With nearly a decade of hands-on experience and research into guinea pig care, she provides practical, evidence-based guidance to help owners give their pets the best possible lives. Find out more...View Author posts