Bostonterrier
VS
Tosa
Bostonterrier vs Tosa
Compare Bostonterrier and Tosa 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
Tosa
Breed type
Purebred
Purebred
Height
38 – 43 cm
70 – 75 cm
Weight
7 – 11 kg
60 – 90 kg
Life expectancy
10 – 14 years
10 – 12 years
Child friendly
5/5
3/5
Energy level
3/5
3/5
Intelligence
3/5
3/5
Trainability
4/5
4/5
Health
3/5
3/5
Grooming needs
2/5
1/5
Shedding
3/5
2/5
Barking level
3/5
3/5
Aggressiveness
2/5
3/5
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Characteristics
Bostonterrier
Great with kids
Low grooming
Easy to train
Small
Tosa
Low grooming
Easy to train
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 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.
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