Bullmastiff vs Fox 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

Fox Terrier

Size
15–19 lbs, 14–16 in
Lifespan
12–15 years
Exercise
High
Grooming
Moderate
Good with Kids
Yes
Good with Pets
No
Alert Lively Fearless Quick

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 Fox Terrier

The Fox Terrier — available in Smooth and Wire varieties — was originally bred in 18th-century England to bolt foxes from their dens during hunts. Standing 14–15.5 inches tall and weighing 15–18 pounds, these compact, muscular terriers are predominantly white with black, tan, or black-and-tan markings. The Wire Fox Terrier sports a dense, wiry coat with a distinctive beard and eyebrows, while the Smooth variety has a sleek, flat coat — both share the same fearless, high-energy temperament.

Temperament & Personality

Fox Terriers are bold, curious, and endlessly entertaining — true terriers through and through with a mischievous streak that keeps their owners on their toes. They are alert, quick-witted dogs that approach life with infectious enthusiasm and a surprising amount of comedic timing. While affectionate with their families, they can be scrappy with other dogs and have an irrepressible urge to chase anything that moves.

Pros

  • Energetic and entertaining companions — never a dull moment with a Fox Terrier
  • Excellent watchdogs with a sharp, alert bark that deters intruders
  • Wire variety has a hypoallergenic coat that sheds minimally when hand-stripped
  • Hardy, long-lived breed — typically 12–15 years with relatively few genetic health issues

Cons

  • Strong prey drive — will chase cats, squirrels, and small animals relentlessly
  • Tendency to bark excessively — can be problematic in apartments or close-neighbor situations
  • Can be dog-aggressive and confrontational, especially with same-sex dogs
  • Expert escape artists — will dig under or climb over fences with remarkable determination

If you love spirited, fearless dogs with boundless personality, find Fox Terriers for adoption on Puplister.

Available for Adoption

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Frequently Asked Questions

What is the difference between a Bullmastiff and a Fox Terrier?
The Bullmastiff is 100–130 lbs, 24–27 in sized while the Fox Terrier is 15–19 lbs, 14–16 in sized. They differ in size (100–130 lbs, 24–27 in vs 15–19 lbs, 14–16 in), lifespan (7–9 years vs 12–15 years), and care requirements.
Which breed is better with kids, Bullmastiff or Fox Terrier?
Bullmastiff is generally good with kids. Fox Terrier is generally good with kids.
Which breed lives longer, Bullmastiff or Fox Terrier?
The Bullmastiff has a lifespan of 7–9 years while the Fox Terrier has a lifespan of 12–15 years.

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