Bullmastiff
Bullmastiff
VS
American Bully
American Bully

Bullmastiff vs American Bully

Compare Bullmastiff and American Bully 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
American Bully
Breed type
Purebred
Crossbreed
Height
61 – 69 cm
43 – 53 cm
Weight
41 – 59 kg
31 – 54 kg
Life expectancy
8 – 10 years
8 – 15 years
Child friendly
5/5
3/5
Energy level
3/5
3/5
Intelligence
3/5
3/5
Trainability
2/5
3/5
Health
3/5
3/5
Grooming needs
2/5
3/5
Shedding
3/5
3/5
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
American Bully
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 American Bully
The American Bully is a compact, muscular companion dog from the U.S., derived from pit bull–type breeds and bred for a stable, friendly temperament. Available in several sizes, it has a blocky head, short low-care coat, and thrives on close family contact, training, and socialisation.

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