Sealyham Terrier vs Neapolitan Mastiff
Compare Sealyham Terrier and Neapolitan 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
Sealyham Terrier
Neapolitan Mastiff
Breed type
Purebred
Purebred
Height
30 – 31 cm
60 – 73 cm
Weight
8 – 9 kg
50 – 70 kg
Life expectancy
12 – 14 years
8 – 10 years
Child friendly
4/5
4/5
Energy level
4/5
3/5
Intelligence
4/5
3/5
Trainability
3/5
3/5
Health
4/5
2/5
Grooming needs
3/5
3/5
Shedding
1/5
3/5
Barking level
4/5
3/5
Aggressiveness
2/5
3/5
Characteristics
Sealyham Terrier
Great with kids
High energy
Super smart
Small
Neapolitan Mastiff
Great with kids
Giant
Summary
About Sealyham Terrier
Compact Welsh terrier bred for hunting but affectionate and calm at home. Sturdy, low body with a distinctive white double coat, beard and eyebrows needing regular grooming. Intelligent, independent and moderate in exercise needs, it suits engaged families; the breed is now relatively rare.
About Neapolitan Mastiff
Ancient Italian giant guardian with massive build and heavy wrinkles. Calm and affectionate with family, wary of strangers, and protective by nature. Needs early training, steady leadership, moderate daily walks, and careful skin and drool care due to size and loose folds.
Similar breeds
More breeds