Bullmastiff vs Tosa

Compare the Bullmastiff to the Tosa. Use the tool below to compare temperament, size, personality, maintenance requirements, and everything else between Bullmastiffs and Tosas.

Quick Summary

Below are a few quick comparisons between the two breeds.
  • Owner Experience - Both the Bullmastiff and the Tosa are good for new owners, but the Bullmastiff is a slightly better choice.
  • Children - Both breeds are child friendly, but the Bullmastiff is the most friendly between the breeds.
  • Grooming - Both the Bullmastiff and Tosa are very low maintenance and easy to groom.
  • Barking - The Tosa has an average tendency to bark. The Bullmastiff will bark less frequently than most dogs.
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Bullmastiff vs Tosa
Red and Fawn Bullmastiff
Red Tosa Inu
Breed NameBullmastiffTosa
General Details
Breed TypePurebredPurebred
Is Hypo­allergenicNoNo
Lifespan8-10 yrs.10-12 yrs.
Height24-27 in.20-24 in.
Weight110-130 lb90-170 lb
IntelligenceHighHigh
History
Origin CountryUnited KingdomJapan
Origin Year1860 AD1868 AD
Temperament
Overall FriendlinessVery GoodGood
Family FriendlyVery GoodGood
Kid FriendlyVery GoodGood
Pet FriendlyVery GoodBelow Average
Stranger FriendlyGoodPoor
Personality
  • Affectionate
  • Enjoys Attention
  • Loving
  • Does Not Like Being Alone
  • Likes To Snuggle
  • Willing To Please
  • Affectionate
  • Aggressive
  • Loving
  • Willing To Please
Living Environment
ApartmentYesYes
IndoorYesYes
Small YardNoNo
Medium YardNoYes
Large YardNoYes
Temperature Tolerance ¹40°F to 80°F30°F to 80°F
Barks/HowlsRarelyBelow Average
Exercise Needs
Energy LevelMediumLow-Medium
Exercise RequiredMediumMedium
Top Running Speed20 mph28 mph
StrengthVery HighVery High
Grooming Needs
Coat Main­tenanceLowLow
SheddingMediumLow
DanderMediumLow
Drool AmountMediumMedium

¹This is estimated min/max temperature range for a healthy adult dog. Dogs that live indoors, puppies, seniors, unwell dogs, and/or dogs with improperly groomed coats may overheat sooner and get cold more quickly.
Instincts & Behavior Comparison
Breed NameBullmastiffTosa
Breed Mentality
Dominant/AlphaNoYes
Family/PackYesNo
IndependentNoNo
Breed Focus
Distracted EasilyNoNo
AverageNoNo
Focused & PatientYesYes
Breed Instincts
AggressionAverageHigh
Burrow/DiggingAverageAverage
ChasingBelow AverageAverage
Follow CommandsBelow AverageBelow Average
FightingAverageHigh
GuardingHighHigh
HerdingBelow AverageAverage
HuntingAverageAverage
ProtectionHighAverage
Remove VerminBelow AverageAverage
SleddingBelow AverageBelow Average
WatchHighAverage
Health Comparison
Breed NameBullmastiffTosa
Lifespan
Lifespan8-10 yrs.10-12 yrs.
Common Health Issues
BloatNoYes
CancerYesNo
EntropionYesNo
Heart ProblemsYesNo
HemangiosarcomaYesNo
HypothyroidismYesNo
Kidney IssuesYesNo
LymphosarcomaYesNo
OsteosarcomaYesNo
Progressive Retinal AtrophyYesNo
Appearance Comparison
Breed NameBullmastiffTosa
Coat
FurYesYes
Coat Type
Smooth CoatYesYes
Coat Texture
RoughYesYes
Coat Length(s)
ShortYesYes
Coat Color(s)
FawnYesYes
Fawn BrindleYesNo
RedYesYes
Red & FawnYesNo
Red BrindleYesNo
Red Fawn BrindleYesNo
ApricotNoYes
BlackNoYes
Black & TanNoYes
BrindleNoYes