Tosa vs American Mastiff
Compare the Tosa to the American Mastiff. Use the tool below to compare temperament, size, personality, maintenance requirements, and everything else between Tosas and American Mastiffs.
Tosa
American Mastiff
Breed Type
Purebred
Purebred
Allergy Friendly
No
No
Lifespan
10-12 Years
10-12 Years
Height
20-24 Inches
28-36 Inches
Weight
90-170 Pounds
140-200 Pounds
Intelligence
Tosa
American Mastiff
Origin Country
Japan
United States
Origin Year
1868 AD
1990 AD
Tosa
American Mastiff
Overall Friendliness
Family Friendly
Child Friendly
Pet Friendly
Stranger Friendly
Tosa
American Mastiff
Tosa
American Mastiff
Apartment
Yes
Yes
Indoor
Yes
No
Small Yard
No
Yes
Medium Yard
Yes
Yes
Large Yard
Yes
No
Temperature Tolerance
30-80 °F
40-80 °F
Barks/Howls
Tosa
American Mastiff
Energy Level
Low to Medium
Medium
Exercise Required
Medium
Medium
Top Running Speed
28 MPH
24 MPH
Strength
Very High
Very High
Tosa
American Mastiff
Coat Maintenance
Low
Low
Shedding
Low
Medium
Dander
Low
Low
Drool
Medium
Medium
Tosa
American Mastiff
Dominant / Alpha
Yes
No
Family / Pack
No
Yes
Independent
No
No
Tosa
American Mastiff
Distracted Easy
No
No
Focused & Patient
Yes
Yes
Tosa
American Mastiff
Aggression
Burrow / Digging
Chasing
Follow Commands
Fighting
Guarding
Herding
Hunting
Protection
Remove Vermin
Sled Pulling
Watch / Guardian
Tosa
American Mastiff
Average Lifespan
10-12 Years
10-12 Years
Tosa
American Mastiff
Tosa
American Mastiff
Coat Type
Fur
Fur
Coat Layering
Smooth
Smooth
Coat Texture
Rough
Rough
Straight
Coat Length
Short
Short
Tosa
American Mastiff
