English Mastiff vs Spanish Water Dog

Working · Giant vs Herding · Medium

Quick take
  • English Mastiff is the larger breed at 160–230 lbs (males) vs 40–49 lbs for the Spanish Water Dog.
  • The Spanish Water Dog typically lives longer (12–14 years).
  • The Spanish Water Dog has higher daily energy needs.
  • The Spanish Water Dog sheds less.
  • The Spanish Water Dog is generally more trainable.

Side-by-side traits

TraitEnglish MastiffSpanish Water Dog
Group
WorkingHerding
Size
GiantMedium
Origin
EnglandSpain
Height (male)
30"17.5–19.75"
Height (female)
27.5"15.75–18"
Weight (male)
160–230 lbs40–49 lbs
Weight (female)
120–170 lbs31–40 lbs
Lifespan
Average expected lifespan.
6–10 years12–14 years
Energy level
Daily activity needs.
Low (2/5)High (4/5)
Trainability
How quickly the breed learns commands.
Moderate (3/5)High (4/5)
Intelligence
Problem-solving ability.
Moderate (3/5)Very High (5/5)
Exercise needs
Daily physical activity required.
Low (2/5)High (4/5)
Shedding
Lower = less hair around your home.
Moderate (3/5)Very Low (1/5)
Grooming effort
Brushing, bathing, professional grooming.
Very Low (1/5)High (4/5)
Drooling
Lower = drier face and furniture.
Very High (5/5)Very Low (1/5)
Barking
How vocal the breed is.
Low (2/5)Moderate (3/5)
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)High (4/5)
Adaptability
Apartment / new environment tolerance.
Moderate (3/5)Moderate (3/5)
Coat length
shortlong
Hypoallergenic
Lower-shedding, less dander.
NoYes
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About the English Mastiff

The English Mastiff is a courageous, dignified, good-natured giant — the heaviest dog breed, ancient British war hounds. Originally from England, this giant working breed typically weighs 160–230 lbs and lives 6–10 years. Breeders describe them as courageous, dignified, good-natured.

About the Spanish Water Dog

The Spanish Water Dog is a loyal, smart, athletic Spanish all-purpose herder, hunter, and water-rescuer with a curly cord coat. Originally from Spain, this medium herding breed typically weighs 40–49 lbs and lives 12–14 years. Breeders describe them as loyal, smart, athletic.

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English Mastiff health

Common health concerns reported in this breed:

  • Hip dysplasia
  • Bloat
  • Heart disease
  • Cancer

Spanish Water Dog health

Common health concerns reported in this breed:

  • Hip dysplasia
  • Eye disorders
  • Hypothyroidism