American Bulldog vs Cavalier King Charles Spaniel

Working · Large vs Toy · Small

Quick take
  • American Bulldog is the larger breed at 75–100 lbs (males) vs 13–18 lbs for the Cavalier King Charles Spaniel.
  • The Cavalier King Charles Spaniel typically lives longer (12–15 years).
  • The American Bulldog has higher daily energy needs.

Side-by-side traits

TraitAmerican BulldogCavalier King Charles Spaniel
Group
WorkingToy
Size
LargeSmall
Origin
USAEngland
Height (male)
22–25"12–13"
Height (female)
20–23"12–13"
Weight (male)
75–100 lbs13–18 lbs
Weight (female)
60–80 lbs13–18 lbs
Lifespan
Average expected lifespan.
10–12 years12–15 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)Moderate (3/5)
Grooming effort
Brushing, bathing, professional grooming.
Very Low (1/5)Moderate (3/5)
Drooling
Lower = drier face and furniture.
Moderate (3/5)Very Low (1/5)
Barking
How vocal the breed is.
Moderate (3/5)Low (2/5)
Good with kids
High (4/5)Very High (5/5)
Good with other dogs
Moderate (3/5)Very High (5/5)
Good with strangers
Moderate (3/5)Very High (5/5)
Protectiveness
Watchdog tendencies.
Very High (5/5)Very Low (1/5)
Adaptability
Apartment / new environment tolerance.
Moderate (3/5)Very High (5/5)
Coat length
shortmedium
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 Cavalier King Charles Spaniel

The Cavalier King Charles Spaniel is an affectionate, gentle, graceful spaniel — bred as a lapdog companion to British royalty. Originally from England, this small toy breed typically weighs 13–18 lbs and lives 12–15 years. Breeders describe them as affectionate, gentle, graceful.

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American Bulldog health

Common health concerns reported in this breed:

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

Cavalier King Charles Spaniel health

Common health concerns reported in this breed:

  • Mitral valve disease
  • Syringomyelia
  • Hip dysplasia
  • Eye problems