Bullmastiff vs. English Mastiff

What's the Difference?

The Bullmastiff and English Mastiff are both large and powerful dog breeds, but they have some distinct differences. The Bullmastiff is slightly smaller and more agile than the English Mastiff. It has a muscular build and a shorter coat, which requires less grooming. The English Mastiff, on the other hand, is the largest dog breed in terms of mass and has a longer, thicker coat. While both breeds are known for their loyalty and protective nature, the Bullmastiff is often considered more alert and active, making it an excellent guard dog. The English Mastiff, on the other hand, is known for its calm and gentle temperament, making it a great family companion. Overall, both breeds are wonderful choices for experienced dog owners who are looking for a loyal and protective pet.


AttributeBullmastiffEnglish Mastiff
Weight100-130 lbs120-230 lbs
Height24-27 inches27-30 inches
CoatShort and denseShort and dense
ColorFawn, brindle, or redFawn, apricot, or brindle
TemperamentProtective, loyal, calmGentle, affectionate, calm
Exercise NeedsModerateLow
TrainabilityStubborn, independentGentle, patient
Lifespan8-10 years6-10 years

Further Detail


When it comes to large and powerful dog breeds, the Bullmastiff and English Mastiff are two prominent names that often come to mind. Both breeds share a common ancestry and possess remarkable physical attributes, but they also have distinct characteristics that set them apart. In this article, we will delve into the similarities and differences between these magnificent breeds, exploring their temperament, size, exercise needs, grooming requirements, and health considerations.


The Bullmastiff and English Mastiff both exhibit gentle and affectionate temperaments, making them excellent family pets. However, there are subtle differences in their personalities. Bullmastiffs are known for their protective nature and unwavering loyalty. They are natural guardians and have a strong instinct to protect their loved ones. On the other hand, English Mastiffs are often described as gentle giants, displaying a calm and patient demeanor. They are typically more laid-back and less inclined to be protective. Both breeds are generally good with children and can be quite tolerant, but early socialization and training are crucial to ensure their well-rounded development.

Size and Appearance

When it comes to sheer size, both the Bullmastiff and English Mastiff are impressive breeds. The Bullmastiff is slightly smaller, with males typically weighing between 110-130 pounds (50-59 kg) and standing around 25-27 inches (64-69 cm) tall at the shoulder. Females are generally smaller, weighing between 100-120 pounds (45-54 kg) and measuring around 24-26 inches (61-66 cm) in height. In contrast, the English Mastiff is larger, with males weighing between 160-230 pounds (73-104 kg) and standing around 30 inches (76 cm) tall at the shoulder. Females of the English Mastiff breed typically weigh between 120-170 pounds (54-77 kg) and measure around 27.5 inches (70 cm) in height. Both breeds have a muscular build, a broad head, and a short coat, but the English Mastiff tends to have a more massive and imposing appearance.

Exercise Needs

Despite their imposing size, both the Bullmastiff and English Mastiff have relatively low exercise requirements compared to some other breeds. They are generally content with moderate exercise and enjoy leisurely walks or playtime in a secure area. However, it is important to note that the English Mastiff may have a slightly higher exercise threshold due to its larger size and potential for weight-related health issues. Regular exercise is essential to maintain their overall health and prevent obesity, which can put strain on their joints and exacerbate existing health conditions. Engaging in mental stimulation activities, such as puzzle toys or obedience training, can also help keep these intelligent breeds mentally sharp and fulfilled.

Grooming Requirements

Both the Bullmastiff and English Mastiff have short coats that are relatively easy to maintain. They shed moderately throughout the year, with slightly heavier shedding during seasonal changes. Regular brushing with a soft-bristle brush or grooming mitt can help remove loose hair and keep their coats looking healthy. Bathing should be done as needed, typically every few months or when they get dirty. Additionally, routine care such as nail trimming, ear cleaning, and teeth brushing should be part of their grooming regimen to ensure their overall well-being. It is worth noting that due to their facial folds, English Mastiffs may require more attention to keep their skin folds clean and prevent any potential infections.

Health Considerations

Both the Bullmastiff and English Mastiff are prone to certain health issues, as is common with many large breeds. Some of the health concerns that can affect both breeds include hip and elbow dysplasia, bloat (gastric dilatation-volvulus), heart conditions, and certain types of cancer. Responsible breeders perform health screenings on their breeding dogs to minimize the risk of passing on these genetic conditions. Regular veterinary check-ups, a balanced diet, and appropriate exercise can also contribute to their overall health and well-being. Prospective owners should be aware of these potential health issues and be prepared for the associated care and expenses that may arise.


In conclusion, the Bullmastiff and English Mastiff are both remarkable breeds with their own unique attributes. While they share similarities in temperament, grooming requirements, and potential health concerns, their size and exercise needs differ. The Bullmastiff is slightly smaller and requires slightly less exercise, while the English Mastiff is larger and may have slightly higher exercise requirements. Ultimately, the choice between these breeds depends on individual preferences and lifestyle considerations. Regardless of the breed chosen, providing a loving and nurturing environment, along with proper training and care, will ensure a happy and fulfilling life for both the owner and their magnificent canine companion.

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