Irish Terrier
VS
Mastiff
Irish Terrier vs Mastiff
Compare Irish Terrier and 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
Irish Terrier
Mastiff
Breed type
Purebred
Purebred
Height
44 – 50 cm
70 – 91 cm
Weight
11 – 15 kg
75 – 110 kg
Life expectancy
13 – 15 years
10 – 12 years
Child friendly
5/5
3/5
Energy level
4/5
3/5
Intelligence
4/5
4/5
Trainability
2/5
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
3/5
2/5
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Characteristics
Irish Terrier
Great with kids
High energy
Super smart
Stubborn
Medium
Mastiff
Super smart
Giant
Summary
About Irish Terrier
Medium, athletic terrier with a wiry red coat, low shedding when properly groomed. Intelligent, energetic, and independent, needing daily exercise and mental stimulation. Deeply loyal and people‑oriented, a keen watchdog, with strong prey drive and sometimes challenging with other dogs.
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.
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