Great Pyrenees
VS
Mastiff
Great Pyrenees vs Mastiff
Compare Great Pyrenees 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
Great Pyrenees
Mastiff
Breed type
Purebred
Purebred
Height
65 – 80 cm
70 – 91 cm
Weight
34 – 60 kg
75 – 110 kg
Life expectancy
10 – 12 years
10 – 12 years
Child friendly
5/5
3/5
Energy level
3/5
3/5
Intelligence
4/5
4/5
Trainability
3/5
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
3/5
2/5
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Characteristics
Great Pyrenees
Great with kids
Super smart
Giant
Mastiff
Super smart
Giant
Summary
About Great Pyrenees
Large, calm livestock guardian from the Pyrenees, the Great Pyrenees is a powerful white, heavy‑shedding dog with a thick coat and double dewclaws. Gentle yet strongly protective, it needs secure fencing, steady socialization, mental stimulation, and experienced, patient handling.
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.
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