Spanish Mastiff
VS
Great Pyrenees
Spanish Mastiff vs Great Pyrenees
Compare Spanish Mastiff and Great Pyrenees 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
Spanish Mastiff
Great Pyrenees
Breed type
Purebred
Purebred
Height
72 – 85 cm
65 – 80 cm
Weight
70 – 120 kg
34 – 60 kg
Life expectancy
8 – 12 years
10 – 12 years
Child friendly
4/5
5/5
Energy level
3/5
3/5
Intelligence
3/5
4/5
Trainability
3/5
3/5
Health
4/5
2/5
Grooming needs
2/5
4/5
Shedding
3/5
5/5
Barking level
3/5
3/5
Aggressiveness
3/5
3/5
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Characteristics
Spanish Mastiff
Great with kids
Low grooming
Giant
Great Pyrenees
Great with kids
Super smart
Giant
Summary
About Spanish Mastiff
Large, powerful livestock guardian, calm and observant yet strongly protective. Quiet and laid back at home if well exercised, deeply loyal with family and usually reserved with strangers. Independent and thoughtful, it suits experienced owners with space, structure and early socialisation.
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.
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