Leonberger
VS
Spanish Mastiff
Leonberger vs Spanish Mastiff
Compare Leonberger and Spanish 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
Leonberger
Spanish Mastiff
Breed type
Purebred
Purebred
Height
65 – 80 cm
72 – 85 cm
Weight
40 – 77 kg
70 – 120 kg
Life expectancy
9 – 10 years
8 – 12 years
Child friendly
5/5
4/5
Energy level
3/5
3/5
Intelligence
3/5
3/5
Trainability
4/5
3/5
Health
2/5
4/5
Grooming needs
3/5
2/5
Shedding
4/5
3/5
Barking level
3/5
3/5
Aggressiveness
2/5
3/5
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Characteristics
Leonberger
Great with kids
Easy to train
Giant
Spanish Mastiff
Great with kids
Low grooming
Giant
Summary
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.
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.
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