Bullmastiff
VS
Great Pyrenees
Bullmastiff vs Great Pyrenees
Compare Bullmastiff and Great Pyrenees 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
Bullmastiff
Great Pyrenees
Breed type
Purebred
Purebred
Height
61 – 69 cm
65 – 80 cm
Weight
41 – 59 kg
34 – 60 kg
Life expectancy
8 – 10 years
10 – 12 years
Child friendly
5/5
5/5
Energy level
3/5
3/5
Intelligence
3/5
4/5
Trainability
2/5
3/5
Health
3/5
2/5
Grooming needs
2/5
4/5
Shedding
3/5
5/5
Barking level
3/5
3/5
Aggressiveness
4/5
3/5
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Characteristics
Bullmastiff
Great with kids
Low grooming
Protective
Stubborn
Giant
Great Pyrenees
Great with kids
Super smart
Giant
Summary
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.
About Great Pyrenees
Large, calm livestock guardian from the Pyrenees, the Great Pyrenees is a powerful white, heavy‑shedding dog with a thick coat and double dewclaws. Gentle yet strongly protective, it needs secure fencing, steady socialization, mental stimulation, and experienced, patient handling.
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