Bullmastiff vs Clumber Spaniel
Compare Bullmastiff and Clumber Spaniel 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
Bullmastiff
Clumber Spaniel
Breed type
Purebred
Purebred
Height
61 – 69 cm
46 – 52 cm
Weight
41 – 59 kg
25 – 35 kg
Life expectancy
8 – 10 years
9 – 15 years
Child friendly
5/5
5/5
Energy level
3/5
3/5
Intelligence
3/5
4/5
Trainability
2/5
4/5
Health
3/5
2/5
Grooming needs
2/5
4/5
Shedding
3/5
3/5
Barking level
3/5
2/5
Aggressiveness
4/5
3/5
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Characteristics
Bullmastiff
Great with kids
Low grooming
Protective
Stubborn
Giant
Clumber Spaniel
Great with kids
Super smart
Quiet
Easy to train
Large
Summary
About Bullmastiff
Large, powerful guardian originally bred to catch poachers, the Bullmastiff is calm, confident and deeply loyal, often bonding closely with one person. It has a short, low‑maintenance coat, needs space, consistent early training and socialisation to guide its natural protectiveness.
About Clumber Spaniel
Sturdy, low and powerful, the Clumber Spaniel is a large, heavy spaniel with a dense white coat and lemon or orange markings. Calm, gentle and family oriented, it loves scent work and steady walks. It sheds and drools heavily and needs regular grooming, training and moderate exercise.
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