Mastiff
VS
Bullmastiff
Mastiff vs Bullmastiff
Compare Mastiff 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
Mastiff
Bullmastiff
Breed type
Purebred
Purebred
Height
70 – 91 cm
61 – 69 cm
Weight
75 – 110 kg
41 – 59 kg
Life expectancy
10 – 12 years
8 – 10 years
Child friendly
3/5
5/5
Energy level
3/5
3/5
Intelligence
4/5
3/5
Trainability
3/5
2/5
Health
2/5
3/5
Grooming needs
3/5
2/5
Shedding
3/5
3/5
Barking level
3/5
3/5
Aggressiveness
2/5
4/5
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Characteristics
Mastiff
Super smart
Giant
Bullmastiff
Great with kids
Low grooming
Protective
Stubborn
Giant
Summary
About Mastiff
The Mastiff is a giant, heavily built guardian dog, calm and dignified yet deeply devoted to its family. It is watchful rather than aggressive, needs gentle, consistent training, moderate exercise, and space. Its short coat is easy to maintain, but drool, health care, and costs are significant.
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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