King Charles Spaniel
VS
Spanish Mastiff
King Charles Spaniel vs Spanish Mastiff
Compare King Charles Spaniel 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
King Charles Spaniel
Spanish Mastiff
Breed type
Purebred
Purebred
Height
29 – 30 cm
72 – 85 cm
Weight
3 – 9 kg
70 – 120 kg
Life expectancy
10 – 14 years
8 – 12 years
Child friendly
4/5
4/5
Energy level
3/5
3/5
Intelligence
3/5
3/5
Trainability
3/5
3/5
Health
3/5
4/5
Grooming needs
3/5
2/5
Shedding
3/5
3/5
Barking level
3/5
3/5
Aggressiveness
3/5
3/5
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Characteristics
King Charles Spaniel
Great with kids
Small
Spanish Mastiff
Great with kids
Low grooming
Giant
Summary
About King Charles Spaniel
Small, aristocratic toy spaniel with a domed head, short nose and large dark eyes, bred as a devoted lap companion. Calm indoors with moderate exercise needs, it thrives on constant human contact. Long, silky coat needs regular grooming; prone to heart, eye and brachycephalic‑related issues.
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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