Bullmastiff vs Staffordshire Bull Terrier

Which dog breed is right for you?

Bullmastiff

Size
100–130 lbs, 24–27 in
Lifespan
7–9 years
Exercise
Moderate
Grooming
Low
Good with Kids
Yes
Good with Pets
No
Loyal Calm Protective Brave

Staffordshire Bull Terrier

Size
24–38 lbs, 14–16 in
Lifespan
12–14 years
Exercise
High
Grooming
Low
Good with Kids
Yes
Good with Pets
No
Brave Affectionate Reliable Intelligent

About the Bullmastiff

The Bullmastiff was developed in 19th-century England by crossing Bulldogs with Mastiffs — the goal was a powerful, silent guardian capable of tracking and pinning poachers on large estates without mauling them. Standing 24–27 inches tall and weighing 100–130 pounds, the Bullmastiff is a massive, muscular dog with a broad head, dark muzzle, and an imposing physical presence. Their short, dense coat comes in fawn, red, or brindle — always with a black mask — and sheds moderately with minimal grooming requirements.

Temperament & Personality

Bullmastiffs are confident, loyal, and naturally protective — they are alert guardians who rely on their size and intimidating presence rather than excessive barking to deter intruders. Despite their imposing appearance, they are gentle and affectionate with their families, showing particular patience and tenderness with children. They are typically calm and quiet indoors, content to lie at their owner's feet, but they can be territorial with unfamiliar dogs and require early, consistent socialization.

Pros

  • Naturally protective — their imposing presence alone is an effective deterrent
  • Surprisingly low-energy indoors, adapting well to a calm household routine
  • Gentle and affectionate with family members, including children
  • Minimal grooming needs with their short, easy-care coat

Cons

  • Short lifespan averaging only 7–9 years
  • Prone to bloat, hip and elbow dysplasia, lymphoma, and mast cell tumors
  • Significant drooling, especially around mealtimes and in warm weather
  • Their sheer size and strength require an experienced owner capable of managing 100+ pounds of dog

A Bullmastiff offers protection and companionship in equal measure — explore adoptable Bullmastiffs on Puplister and find your gentle giant.

About the Staffordshire Bull Terrier

The Staffordshire Bull Terrier was developed in 19th-century England's Staffordshire region from crosses between Bulldogs and various terriers, originally bred for bull-baiting and later as a compact, agile fighting dog — a history that belies its true nature as a devoted family companion. These muscular, athletic dogs stand 14 to 16 inches tall and weigh 24 to 38 pounds, packed with surprising strength and agility in a compact frame. Their smooth, short coat comes in red, fawn, white, black, blue, or brindle — with or without white markings.

Temperament & Personality

Staffordshire Bull Terriers are affectionate, courageous, and remarkably gentle with people — earning the nickname "nanny dog" in England for their extraordinary patience and devotion to children. They adore human companionship, are playful well into adulthood, and form intensely loyal bonds with their families. While they can be assertive with other dogs, proper socialization from puppyhood typically produces a confident, well-adjusted adult that gets along with everyone.

Pros

  • Exceptionally affectionate and gentle with children and family members
  • Compact, muscular build well-suited for smaller homes and apartments
  • Low-maintenance coat requiring only occasional brushing
  • Brave and loyal — a devoted companion that thrives on human interaction

Cons

  • Can be dog-aggressive without careful socialization and management
  • Breed-specific legislation and housing restrictions in many jurisdictions
  • Prone to hip and elbow dysplasia, L-2 hydroxyglutaric aciduria, and cataracts
  • Strong and powerful — requires owners who can provide firm, consistent leadership

Staffies are among the most devoted family dogs in existence — find a Staffordshire Bull Terrier on Puplister and see for yourself.

Available for Adoption

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Frequently Asked Questions

What is the difference between a Bullmastiff and a Staffordshire Bull Terrier?
The Bullmastiff is 100–130 lbs, 24–27 in sized while the Staffordshire Bull Terrier is 24–38 lbs, 14–16 in sized. They differ in size (100–130 lbs, 24–27 in vs 24–38 lbs, 14–16 in), lifespan (7–9 years vs 12–14 years), and care requirements.
Which breed is better with kids, Bullmastiff or Staffordshire Bull Terrier?
Bullmastiff is generally good with kids. Staffordshire Bull Terrier is generally good with kids.
Which breed lives longer, Bullmastiff or Staffordshire Bull Terrier?
The Bullmastiff has a lifespan of 7–9 years while the Staffordshire Bull Terrier has a lifespan of 12–14 years.

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