Saint Bernard
VS
Bullmastiff
Saint Bernard vs Bullmastiff
Compare Saint Bernard and Bullmastiff side by side and get a clear picture of what sets the breeds apart. Explore differences in size, weight, temperament, activity level, and other key traits to more easily decide which breed best fits your lifestyle and circumstances.
Characteristic
Saint Bernard
Bullmastiff
Breed type
Purebred
Purebred
Height
65 – 90 cm
61 – 69 cm
Weight
60 – 100 kg
41 – 59 kg
Life expectancy
8 – 10 years
8 – 10 years
Child friendly
5/5
5/5
Energy level
3/5
3/5
Intelligence
3/5
3/5
Trainability
3/5
2/5
Health
3/5
3/5
Grooming needs
4/5
2/5
Shedding
5/5
3/5
Barking level
3/5
3/5
Aggressiveness
2/5
4/5
Characteristics
Saint Bernard
Great with kids
Giant
Bullmastiff
Great with kids
Low grooming
Protective
Stubborn
Giant
Summary
About Saint Bernard
Large, gentle mountain dog developed by Swiss monks for rescue and companionship. Calm and affectionate, especially with children, but very big, drooly, and heavy shedding. Needs moderate exercise, careful joint and health management, and close inclusion in family life.
About Bullmastiff
Large, powerful guardian originally bred to catch poachers, the Bullmastiff is calm, confident and deeply loyal, often bonding closely with one person. It has a short, low‑maintenance coat, needs space, consistent early training and socialisation to guide its natural protectiveness.
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