Spanish Mastiff
VS
Leonberger
Spanish Mastiff vs Leonberger
Compare Spanish Mastiff and Leonberger 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
Leonberger
Breed type
Purebred
Purebred
Height
72 – 85 cm
65 – 80 cm
Weight
70 – 120 kg
40 – 77 kg
Life expectancy
8 – 12 years
9 – 10 years
Child friendly
4/5
5/5
Energy level
3/5
3/5
Intelligence
3/5
3/5
Trainability
3/5
4/5
Health
4/5
2/5
Grooming needs
2/5
3/5
Shedding
3/5
4/5
Barking level
3/5
3/5
Aggressiveness
3/5
2/5
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Characteristics
Spanish Mastiff
Great with kids
Low grooming
Giant
Leonberger
Great with kids
Easy to train
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 Leonberger
Large, strongly built “gentle giant” with lion‑coloured, water‑resistant double coat and black mask. Typically calm, devoted, and very good with children and other pets when well socialised. Needs regular exercise, kind training, thorough grooming, and careful health management.
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