Greyhound vs Mastiff
Hound · Large vs Working · Giant
GreyhoundLarge
A gentle, independent, noble sighthound — the fastest dog (45 mph) and biggest couch potato off-track.
Weight: 65–70 lbsLifespan: 10–13 years
MastiffGiant
A courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs.
Weight: 160–230 lbsLifespan: 6–10 years
Quick take
- • Mastiff is the larger breed at 160–230 lbs (males) vs 65–70 lbs for the Greyhound.
- • The Greyhound typically lives longer (10–13 years).
- • The Greyhound has higher daily energy needs.
- • The Greyhound sheds less.
Side-by-side traits
| Trait | Greyhound | Mastiff |
|---|---|---|
Group | Hound | Working |
Size | Large | Giant |
Origin | Egypt | England |
Height (male) | 28–30" | 30" |
Height (female) | 27–28" | 27.5" |
Weight (male) | 65–70 lbs | 160–230 lbs |
Weight (female) | 60–65 lbs | 120–170 lbs |
Lifespan Average expected lifespan. | 10–13 years | 6–10 years |
Energy level Daily activity needs. | Moderate (3/5) | Low (2/5) |
Trainability How quickly the breed learns commands. | Moderate (3/5) | Moderate (3/5) |
Intelligence Problem-solving ability. | High (4/5) | Moderate (3/5) |
Exercise needs Daily physical activity required. | High (4/5) | Low (2/5) |
Shedding Lower = less hair around your home. | Low (2/5) | Moderate (3/5) |
Grooming effort Brushing, bathing, professional grooming. | Very Low (1/5) | Very Low (1/5) |
Drooling Lower = drier face and furniture. | Very Low (1/5) | Very High (5/5) |
Barking How vocal the breed is. | Very Low (1/5) | Low (2/5) |
Good with kids | Very High (5/5) | High (4/5) |
Good with other dogs | High (4/5) | Moderate (3/5) |
Good with strangers | High (4/5) | Moderate (3/5) |
Protectiveness Watchdog tendencies. | Low (2/5) | Very High (5/5) |
Adaptability Apartment / new environment tolerance. | High (4/5) | Moderate (3/5) |
Coat length | short | short |
Hypoallergenic Lower-shedding, less dander. | No | No |
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About the Greyhound
The Greyhound is a gentle, independent, noble sighthound — the fastest dog (45 mph) and biggest couch potato off-track. Originally from Egypt, this large hound breed typically weighs 65–70 lbs and lives 10–13 years. Breeders describe them as gentle, independent, noble.
About the Mastiff
The Mastiff is a courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs. Originally from England, this giant working breed typically weighs 160–230 lbs and lives 6–10 years. Breeders describe them as courageous, dignified, good-natured.
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Greyhound health
Common health concerns reported in this breed:
- • Bloat
- • Bone cancer
- • Anesthesia sensitivity
Mastiff health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Bloat
- • Heart disease
- • Cancer