Bostonterrier
VS
Bullmastiff
Bostonterrier vs Bullmastiff
Compare Bostonterrier 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
Bostonterrier
Bullmastiff
Breed type
Purebred
Purebred
Height
38 – 43 cm
61 – 69 cm
Weight
7 – 11 kg
41 – 59 kg
Life expectancy
10 – 14 years
8 – 10 years
Child friendly
5/5
5/5
Energy level
3/5
3/5
Intelligence
3/5
3/5
Trainability
4/5
2/5
Health
3/5
3/5
Grooming needs
2/5
2/5
Shedding
3/5
3/5
Barking level
3/5
3/5
Aggressiveness
2/5
4/5
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Characteristics
Bostonterrier
Great with kids
Low grooming
Easy to train
Small
Bullmastiff
Great with kids
Low grooming
Protective
Stubborn
Giant
Summary
About Bostonterrier
The Bostonterrier is a small, sturdy, people‑focused companion with a square build and short, tuxedo‑patterned coat. Cheerful, affectionate, and adaptable, it enjoys both play and relaxing with its family. Grooming is simple, but its short nose and prominent eyes need extra health care.
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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