English Mastiff vs Shetland Sheepdog
Working · Giant vs Herding · Small
English MastiffGiant
A courageous, dignified, good-natured giant — the heaviest dog breed, ancient British war hounds.
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
- • English 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 English Mastiff sheds less.
- • The Shetland Sheepdog is generally more trainable.
Side-by-side traits
| Trait | English 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 English Mastiff
The English Mastiff is a courageous, dignified, good-natured giant — the heaviest dog breed, ancient British war hounds. 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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English 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