Bullmastiff vs Whippet

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

Whippet

Size
25–40 lbs, 18–22 in
Lifespan
12–15 years
Exercise
Moderate
Grooming
Low
Good with Kids
Yes
Good with Pets
Yes
Gentle Quiet Affectionate Athletic

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 Whippet

The Whippet was developed in Victorian England by coal miners and mill workers who bred small Greyhounds with terriers to create an affordable racing and rabbit-coursing dog — earning the nickname "the poor man's racehorse." These elegant sighthounds stand 18 to 22 inches tall and weigh 25 to 40 pounds, with a streamlined, aerodynamic build capable of reaching speeds up to 35 miles per hour. Their short, smooth coat comes in virtually any color or pattern and lies close to the body, accentuating their graceful, muscular contours.

Temperament & Personality

Whippets are gentle, quiet, and remarkably calm indoors — often spending hours draped elegantly across furniture in poses that would make a greyhound proud. They are affectionate and sensitive with their families, good with children (though their slender build makes them vulnerable to rough play), and generally friendly with other dogs. Despite their sprinting ability, Whippets are surprisingly low-energy at home and are often described as the ideal apartment dog for owners who enjoy outdoor exercise.

Pros

  • Extremely calm and quiet indoors — one of the most unobtrusive housemates
  • Short, low-maintenance coat with minimal shedding and no doggy odor
  • Gentle, affectionate nature — rarely aggressive toward people or other dogs
  • Healthy breed with a long lifespan of 12 to 15 years

Cons

  • Intense prey drive — will chase and potentially catch small animals including cats
  • Thin skin and low body fat make them sensitive to cold and prone to scrapes
  • Cannot be trusted off-leash in unfenced areas — once they run, they cannot hear you
  • Susceptible to anesthesia sensitivity and cardiac arrhythmias

Whippets are the perfect blend of couch companion and outdoor athlete — find one looking for a home on Puplister.

Available for Adoption

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Bullmastiffs

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Frequently Asked Questions

What is the difference between a Bullmastiff and a Whippet?
The Bullmastiff is 100–130 lbs, 24–27 in sized while the Whippet is 25–40 lbs, 18–22 in sized. They differ in size (100–130 lbs, 24–27 in vs 25–40 lbs, 18–22 in), lifespan (7–9 years vs 12–15 years), and care requirements.
Which breed is better with kids, Bullmastiff or Whippet?
Bullmastiff is generally good with kids. Whippet is generally good with kids.
Which breed lives longer, Bullmastiff or Whippet?
The Bullmastiff has a lifespan of 7–9 years while the Whippet has a lifespan of 12–15 years.

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