Tosa vs Mastiff
Compare Tosa and Mastiff 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
Tosa
Mastiff
Breed type
Purebred
Purebred
Height
70 – 75 cm
70 – 91 cm
Weight
60 – 90 kg
75 – 110 kg
Life expectancy
10 – 12 years
10 – 12 years
Child friendly
3/5
3/5
Energy level
3/5
3/5
Intelligence
3/5
4/5
Trainability
4/5
3/5
Health
3/5
2/5
Grooming needs
1/5
3/5
Shedding
2/5
3/5
Barking level
3/5
3/5
Aggressiveness
3/5
2/5
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Characteristics
Tosa
Low grooming
Easy to train
Giant
Mastiff
Super smart
Giant
Summary
About Tosa
The Tosa is a large, powerful Japanese breed, calm and dignified at home yet naturally protective. Loyal and often devoted to one person, it needs experienced handling, early socialisation and consistent training. Short-coated but high-commitment, it faces legal restrictions in some countries.
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.
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