Greyhound
Greyhound
VS
Mastiff
Mastiff

Greyhound vs Mastiff

Compare Greyhound 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
Greyhound
Mastiff
Breed type
Purebred
Purebred
Height
68 – 76 cm
70 – 91 cm
Weight
28 – 50 kg
75 – 110 kg
Life expectancy
9 – 12 years
10 – 12 years
Child friendly
5/5
3/5
Energy level
4/5
3/5
Intelligence
3/5
4/5
Trainability
4/5
3/5
Health
3/5
2/5
Grooming needs
2/5
3/5
Shedding
2/5
3/5
Barking level
1/5
3/5
Aggressiveness
3/5
2/5
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Characteristics

Greyhound
Great with kids
High energy
Low grooming
Quiet
Easy to train
Giant
Mastiff
Super smart
Giant

Summary

About Greyhound
Tall, slender Greyhounds are sprinting sighthounds, built for speed yet calm indoors. They have a short, low‑maintenance coat in many colors and need soft bedding and weather protection. Gentle, sensitive, and affectionate, they suit owners who provide routine, kind training, and moderate daily exercise.
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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