Mastiff
VS
Portuguese Water Dog
Mastiff vs Portuguese Water Dog
Compare Mastiff and Portuguese Water Dog 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
Mastiff
Portuguese Water Dog
Breed type
Purebred
Purebred
Height
70 – 91 cm
43 – 57 cm
Weight
75 – 110 kg
16 – 25 kg
Life expectancy
10 – 12 years
12 – 15 years
Child friendly
3/5
5/5
Energy level
3/5
5/5
Intelligence
4/5
4/5
Trainability
3/5
4/5
Health
2/5
3/5
Grooming needs
3/5
4/5
Shedding
3/5
1/5
Barking level
3/5
3/5
Aggressiveness
2/5
3/5
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Characteristics
Mastiff
Super smart
Giant
Portuguese Water Dog
Great with kids
High energy
Super smart
Easy to train
Medium
Summary
About Mastiff
The Mastiff is a giant, heavily built guardian dog, calm and dignified yet deeply devoted to its family. It is watchful rather than aggressive, needs gentle, consistent training, moderate exercise, and space. Its short coat is easy to maintain, but drool, health care, and costs are significant.
About Portuguese Water Dog
The Portuguese Water Dog is a sturdy, medium‑sized, low‑shedding water lover with a curly or wavy coat. Intelligent, people‑oriented and energetic, it needs regular grooming, daily training, and plenty of exercise and swimming, thriving as an active, closely involved family companion.
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