Newfoundland
VS
Mastiff
Newfoundland vs Mastiff
Compare Newfoundland and Mastiff side by side and get a clear picture of what sets the breeds apart. Explore differences in size, weight, temperament, activity level, and other key traits to more easily decide which breed best fits your lifestyle and circumstances.
Characteristic
Newfoundland
Mastiff
Breed type
Purebred
Purebred
Height
65 – 71 cm
70 – 91 cm
Weight
52 – 68 kg
75 – 110 kg
Life expectancy
8 – 10 years
10 – 12 years
Child friendly
5/5
3/5
Energy level
3/5
3/5
Intelligence
4/5
4/5
Trainability
4/5
3/5
Health
2/5
2/5
Grooming needs
4/5
3/5
Shedding
5/5
3/5
Barking level
3/5
3/5
Aggressiveness
2/5
2/5
Sponsored Ad
Characteristics
Newfoundland
breed_badge.great_with_kids
breed_badge.super_smart
breed_badge.easy_to_train
breed_badge.size_giant
Mastiff
breed_badge.super_smart
breed_badge.size_giant
Summary
About Newfoundland
The Newfoundland is a giant, water‑loving working dog with a dense, heavy‑shedding coat and notable drooling. Calm, loyal, and gentle with children, it needs close family contact, kind training, moderate exercise, careful grooming, space, and proactive health care for joints, heart, and bloat.
About Mastiff
The Mastiff is a giant, heavily built guardian dog, calm and dignified yet deeply devoted to its family. It is watchful rather than aggressive, needs gentle, consistent training, moderate exercise, and space. Its short coat is easy to maintain, but drool, health care, and costs are significant.
Similar breeds
More breeds
