Mastiff vs Shetland Sheepdog
Working · Giant vs Herding · Small
MastiffGiant
A courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs.
Weight: 160–230 lbsLifespan: 6–10 years
Shetland SheepdogSmall
A bright, playful, energetic miniature Collie from the windswept Shetland Islands — keenly intelligent.
Weight: 15–25 lbsLifespan: 12–14 years
Quick take
- • Mastiff is the larger breed at 160–230 lbs (males) vs 15–25 lbs for the Shetland Sheepdog.
- • The Shetland Sheepdog typically lives longer (12–14 years).
- • The Shetland Sheepdog has higher daily energy needs.
- • The Mastiff sheds less.
- • The Shetland Sheepdog is generally more trainable.
Side-by-side traits
| Trait | Mastiff | Shetland Sheepdog |
|---|---|---|
Group | Working | Herding |
Size | Giant | Small |
Origin | England | Scotland |
Height (male) | 30" | 13–16" |
Height (female) | 27.5" | 13–16" |
Weight (male) | 160–230 lbs | 15–25 lbs |
Weight (female) | 120–170 lbs | 15–25 lbs |
Lifespan Average expected lifespan. | 6–10 years | 12–14 years |
Energy level Daily activity needs. | Low (2/5) | High (4/5) |
Trainability How quickly the breed learns commands. | Moderate (3/5) | Very High (5/5) |
Intelligence Problem-solving ability. | Moderate (3/5) | Very High (5/5) |
Exercise needs Daily physical activity required. | Low (2/5) | High (4/5) |
Shedding Lower = less hair around your home. | Moderate (3/5) | High (4/5) |
Grooming effort Brushing, bathing, professional grooming. | Very Low (1/5) | High (4/5) |
Drooling Lower = drier face and furniture. | Very High (5/5) | Very Low (1/5) |
Barking How vocal the breed is. | Low (2/5) | Very High (5/5) |
Good with kids | High (4/5) | High (4/5) |
Good with other dogs | Moderate (3/5) | High (4/5) |
Good with strangers | Moderate (3/5) | Low (2/5) |
Protectiveness Watchdog tendencies. | Very High (5/5) | Moderate (3/5) |
Adaptability Apartment / new environment tolerance. | Moderate (3/5) | High (4/5) |
Coat length | short | long |
Hypoallergenic Lower-shedding, less dander. | No | No |
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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.
About the Shetland Sheepdog
The Shetland Sheepdog is a bright, playful, energetic miniature Collie from the windswept Shetland Islands — keenly intelligent. Originally from Scotland, this small herding breed typically weighs 15–25 lbs and lives 12–14 years. Breeders describe them as bright, playful, energetic.
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Mastiff health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Bloat
- • Heart disease
- • Cancer
Shetland Sheepdog health
Common health concerns reported in this breed:
- • Collie eye anomaly
- • MDR1 gene mutation
- • Hip dysplasia
- • Hypothyroidism