Mastiff vs Newfoundland
Working · Giant vs Working · Giant
MastiffGiant
A courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs.
Weight: 160–230 lbsLifespan: 6–10 years
NewfoundlandGiant
A sweet, patient, devoted water-rescue dog — the gentle 'nanny dog' from Canada's Atlantic coast.
Weight: 130–150 lbsLifespan: 9–10 years
Quick take
- • Mastiff is the larger breed at 160–230 lbs (males) vs 130–150 lbs for the Newfoundland.
- • The Newfoundland typically lives longer (9–10 years).
- • The Mastiff sheds less.
- • The Newfoundland is generally more trainable.
Side-by-side traits
| Trait | Mastiff | Newfoundland |
|---|---|---|
Group | Working | Working |
Size | Giant | Giant |
Origin | England | Canada |
Height (male) | 30" | 28" |
Height (female) | 27.5" | 26" |
Weight (male) | 160–230 lbs | 130–150 lbs |
Weight (female) | 120–170 lbs | 100–120 lbs |
Lifespan Average expected lifespan. | 6–10 years | 9–10 years |
Energy level Daily activity needs. | Low (2/5) | Low (2/5) |
Trainability How quickly the breed learns commands. | Moderate (3/5) | High (4/5) |
Intelligence Problem-solving ability. | Moderate (3/5) | High (4/5) |
Exercise needs Daily physical activity required. | Low (2/5) | Moderate (3/5) |
Shedding Lower = less hair around your home. | Moderate (3/5) | Very High (5/5) |
Grooming effort Brushing, bathing, professional grooming. | Very Low (1/5) | High (4/5) |
Drooling Lower = drier face and furniture. | Very High (5/5) | Very High (5/5) |
Barking How vocal the breed is. | Low (2/5) | 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) | High (4/5) |
Adaptability Apartment / new environment tolerance. | Moderate (3/5) | Moderate (3/5) |
Coat length | short | long |
Hypoallergenic Lower-shedding, less dander. | No | No |
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About the Mastiff
The Mastiff is a courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs. 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 Newfoundland
The Newfoundland is a sweet, patient, devoted water-rescue dog — the gentle 'nanny dog' from Canada's Atlantic coast. Originally from Canada, this giant working breed typically weighs 130–150 lbs and lives 9–10 years. Breeders describe them as sweet, patient, devoted.
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Mastiff health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Bloat
- • Heart disease
- • Cancer
Newfoundland health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Heart disease
- • Bloat
- • Cystinuria