American Bulldog vs Bullmastiff

Working · Large vs Working · Large

Quick take
  • Bullmastiff is the larger breed at 110–130 lbs (males) vs 75–100 lbs for the American Bulldog.
  • The American Bulldog typically lives longer (10–12 years).
  • The American Bulldog has higher daily energy needs.
  • The Bullmastiff sheds less.

Side-by-side traits

TraitAmerican BulldogBullmastiff
Group
WorkingWorking
Size
LargeLarge
Origin
USAEngland
Height (male)
22–25"25–27"
Height (female)
20–23"24–26"
Weight (male)
75–100 lbs110–130 lbs
Weight (female)
60–80 lbs100–120 lbs
Lifespan
Average expected lifespan.
10–12 years7–9 years
Energy level
Daily activity needs.
High (4/5)Moderate (3/5)
Trainability
How quickly the breed learns commands.
High (4/5)High (4/5)
Intelligence
Problem-solving ability.
High (4/5)High (4/5)
Exercise needs
Daily physical activity required.
High (4/5)Moderate (3/5)
Shedding
Lower = less hair around your home.
Moderate (3/5)Low (2/5)
Grooming effort
Brushing, bathing, professional grooming.
Very Low (1/5)Very Low (1/5)
Drooling
Lower = drier face and furniture.
Moderate (3/5)Very High (5/5)
Barking
How vocal the breed is.
Moderate (3/5)Low (2/5)
Good with kids
High (4/5)High (4/5)
Good with other dogs
Moderate (3/5)Moderate (3/5)
Good with strangers
Moderate (3/5)Moderate (3/5)
Protectiveness
Watchdog tendencies.
Very High (5/5)Very High (5/5)
Adaptability
Apartment / new environment tolerance.
Moderate (3/5)Moderate (3/5)
Coat length
shortshort
Hypoallergenic
Lower-shedding, less dander.
NoNo
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About the American Bulldog

The American Bulldog is a loyal, athletic, hard-working farm guardian — taller and more athletic than the English Bulldog. Originally from USA, this large working breed typically weighs 75–100 lbs and lives 10–12 years. Breeders describe them as loyal, athletic, hardworking.

About the Bullmastiff

The Bullmastiff is an affectionate, loyal, brave gamekeeper's night dog — Mastiff-Bulldog cross bred to subdue poachers. Originally from England, this large working breed typically weighs 110–130 lbs and lives 7–9 years. Breeders describe them as affectionate, loyal, brave.

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American Bulldog health

Common health concerns reported in this breed:

  • Hip dysplasia
  • Cherry eye
  • Skin allergies
  • Kidney disease

Bullmastiff health

Common health concerns reported in this breed:

  • Hip dysplasia
  • Bloat
  • Cancer
  • Heart problems