Affenpinscher vs Bullmastiff

Which dog breed is right for you?

Affenpinscher

Size
7–10 lbs, 9–12 in
Lifespan
12–15 years
Exercise
Moderate
Grooming
Moderate
Good with Kids
No
Good with Pets
Yes
Confident Playful Stubborn Curious

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

About the Affenpinscher

The Affenpinscher — often called the "Monkey Dog" for its comical, primate-like facial expression — is a small but sturdy toy breed that originated in Germany during the 17th century. Originally bred to hunt rats in kitchens, granaries, and stables, these wiry little terriers stand just 9–11.5 inches tall and weigh 7–10 pounds. Their rough, shaggy coat — typically black, though also found in gray, silver, red, and belge — frames a flat face with prominent dark eyes, bushy eyebrows, and a pronounced underbite that gives them their signature mischievous look.

Temperament & Personality

Affenpinschers are fearless, curious, and endlessly entertaining — they pack the confidence of a dog ten times their size into a tiny, wiry-haired package. They are fiercely loyal to their owners and surprisingly territorial, often standing their ground against much larger dogs without hesitation. While affectionate with their family, they can be possessive of their toys and food, and their stubborn, independent streak means they prefer to make their own decisions rather than blindly follow commands.

Pros

  • Compact size and moderate exercise needs — ideal for apartment living
  • Low-shedding, wiry coat that is relatively easy to maintain with weekly brushing
  • Entertaining and comical personality — they are natural performers who love an audience
  • Excellent watchdog despite small size — alert and vocal about anything unusual

Cons

  • Stubborn and difficult to housetrain — patience and consistency are essential
  • Not ideal for families with very young children — can be snappy if handled roughly
  • Prone to brachycephalic breathing issues, patellar luxation, and heart murmurs
  • Strong prey drive toward small animals — will chase squirrels, hamsters, and birds relentlessly

Looking for a tiny dog with a big personality? Browse adoptable Affenpinschers on Puplister and find your perfect match.

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.

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Frequently Asked Questions

What is the difference between a Affenpinscher and a Bullmastiff?
The Affenpinscher is 7–10 lbs, 9–12 in sized while the Bullmastiff is 100–130 lbs, 24–27 in sized. They differ in size (7–10 lbs, 9–12 in vs 100–130 lbs, 24–27 in), lifespan (12–15 years vs 7–9 years), and care requirements.
Which breed is better with kids, Affenpinscher or Bullmastiff?
Affenpinscher is not typically good with kids. Bullmastiff is generally good with kids.
Which breed lives longer, Affenpinscher or Bullmastiff?
The Affenpinscher has a lifespan of 12–15 years while the Bullmastiff has a lifespan of 7–9 years.

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