DogMatchUp

Sealyham Terrier vs Bullmastiff

Comprehensive comparison of two popular breeds to help you decide which one might be the better fit for your lifestyle and preferences.

Sealyham Terrier
Small

Sealyham Terrier

Terrier Group

Bullmastiff
Large

Bullmastiff

Working Group

Quick Comparison

Size

Sealyham Terrier Small
Bullmastiff Large

Lifespan

Sealyham Terrier 12-14 years
Bullmastiff 7-9 years

Exercise Needs

Sealyham Terrier 3/5
Bullmastiff 4/5

Grooming Needs

Sealyham Terrier 4/5
Bullmastiff 2/5

Breed Overview

Sealyham Terrier Overview

Sealyham Terriers showcase a distinctive white coat and muscular build, standing 10.5 inches at the shoulder. Their powerful jaws and strong neck reflect their hunting heritage, while their long, broad head features dark eyes and folded ears. These sturdy terriers combine an alert, outgoing personality with a charming sense of humor, making them both capable workers and delightful companions.

Origin: Unknown
Life Expectancy: 12-14 years
Size: Small
Temperament: Alert, Outgoing, Sense Of Humor

Bullmastiff Overview

Powerful and majestic, Bullmastiffs showcase a muscular build with a distinctive broad head and dark muzzle. Their short fawn, red, or brindle coat complements their imposing yet gentle demeanor. Standing up to 27 inches at the shoulder with males weighing up to 130 pounds, these dogs combine strength with surprising agility. Their watchful expression and noble bearing reflect their heritage as guardian breeds.

Origin: Unknown
Life Expectancy: 7-9 years
Size: Large
Temperament: Affectionate, Loyal, Brave

Key Differences

  • Energy Level: Sealyham Terriers are less energetic than Bullmastiffs, requiring less daily exercise.
  • Grooming: Sealyham Terriers require more grooming attention compared to Bullmastiffs.
  • Temperament: While both breeds are intelligent, Sealyham Terriers tend to be more outgoing with strangers than Bullmastiffs.
  • Trainability: Bullmastiffs may be slightly easier to train due to their Bullmastiff's higher intelligence ranking.
  • Living Situation: Sealyham Terriers adapt better to apartment living, while Bullmastiffs typically prefer homes with more space.

Detailed Comparison

Below is a comprehensive side-by-side comparison of the Sealyham Terrier and Bullmastiff, covering everything from physical characteristics to care requirements.

Basic Information

Feature Sealyham Terrier Bullmastiff
Size Small Large
Life Expectancy 12-14 years 7-9 years
Country of Origin Unknown Unknown
Breed Group Terrier Group Working Group

Physical Characteristics

Feature Sealyham Terrier Bullmastiff
Height
11-11 inches
27-27 cm
24-27 inches
61-69 cm
Weight
23-24 lbs
10-11 kg
100-130 lbs
45-59 kg
Coat Type Short, dense coat Short, dense coat
Coat Length Short Short
Shedding Seasonal Seasonal

Temperament & Behavior

Feature Sealyham Terrier Bullmastiff
Temperament Alert, Outgoing, Sense Of Humor Affectionate, Loyal, Brave
Energy Level
3/5
4/5
Intelligence
2/5
2/5

Compatibility

Feature Sealyham Terrier Bullmastiff
Good with Children
3/5
3/5
Good with Other Dogs
3/5
3/5
Apartment Friendly
3/5
2/5

Temperament & Personality

Sealyham Terrier Temperament

Alert Outgoing Sense Of Humor

The Sealyham Terrier is known for being alert, outgoing, sense of humor, making them better suited for homes without young children. Their moderate intelligence means they can be trained with consistent effort. They're typically friendly with strangers, making them poor guard dogs but excellent social companions. Their moderate energy level makes them adaptable to different lifestyles, though they still need regular exercise.

Bullmastiff Temperament

Affectionate Loyal Brave

The Bullmastiff is characterized by being affectionate, loyal, brave, which makes them better for households without small children. With their moderate intelligence, they can learn with consistent training methods. They're naturally cautious around strangers, which enhances their ability to serve as watchdogs. Their high energy requires substantial daily exercise and activities to keep them physically and mentally satisfied.

Temperament Comparison

When comparing the Sealyham Terrier and Bullmastiff, there are notable differences in their temperaments that potential owners should consider:

Sociability with Strangers

Sealyham Terrier
4/5
Bullmastiff
3/5

Good with Children

Sealyham Terrier
3/5
Bullmastiff
3/5

Side-by-Side Trait Ratings

GOOD WITH YOUNG CHILDREN

Sealyham Terrier

Not Recommended Good With Children

Rating: 3/5

Bullmastiff

Not Recommended Good With Children

Rating: 3/5

GOOD WITH OTHER DOGS

Sealyham Terrier

Not Recommended Good With Other Dogs

Rating: 3/5

Bullmastiff

Not Recommended Good With Other Dogs

Rating: 3/5

ENERGY LEVEL

Sealyham Terrier

Low High

Rating: 3/5

Bullmastiff

Low High

Rating: 4/5

TRAINABILITY / INTELLIGENCE

Sealyham Terrier

Challenging Easy to Train

Rating: 2/5

Bullmastiff

Challenging Easy to Train

Rating: 2/5

GROOMING NEEDS

Sealyham Terrier

Low High

Rating: 4/5

Bullmastiff

Low High

Rating: 2/5

Care & Maintenance

Sealyham Terrier Care Requirements

Exercise Needs

3/5

Sealyham Terriers require moderate daily exercise, including about 30-60 minutes of physical activity. This can include walks, play sessions, and moderate activities like walking and interactive play.

Grooming Requirements

4/5

With their short, dense coat coat, Sealyham Terriers require frequent grooming. This includes brushing several times per week to prevent matting and reduce shedding. Professional grooming every 4-8 weeks is recommended.

Bullmastiff Care Requirements

Exercise Needs

4/5

Bullmastiffs need substantial daily exercise, including at least 60-90 minutes of physical activity. This should include walks, play sessions, and more intense activities like running, swimming, or agility training.

Grooming Requirements

2/5

With their short, dense coat coat, Bullmastiffs require moderate grooming. This includes regular brushing to maintain coat health and reduce shedding. Occasional professional grooming may be helpful.

Health & Lifespan

Sealyham Terrier Health Profile

Average Lifespan: 12-14 years

Common Health Issues:

  • Retinal Dysplasia
  • Lens Luxation
  • Hip Issues
  • Allergies
  • Deafness

Bullmastiff Health Profile

Average Lifespan: 7-9 years

Common Health Issues:

  • Hip Dysplasia
  • Bloat
  • Heart Issues
  • Eye Problems
  • Cancer

Pros & Cons

Sealyham Terrier

Pros

  • Good with families
  • Alert watchdog
  • Minimal shedding
  • Adaptable to various homes

Cons

  • Regular grooming needed
  • Can be stubborn
  • May chase small animals
  • Requires experienced handling

Bullmastiff

Pros

  • Loyal and protective
  • Good with family
  • Low grooming needs
  • Quiet nature
  • Excellent guardians

Cons

  • Heavy droolers
  • Shorter lifespan
  • Size management issues
  • Not good with strangers
  • Health concerns

Ready to Find Your Perfect Match?

Now that you've compared the Sealyham Terrier and Bullmastiff, explore more breeds or use our breed matching tool to find the perfect dog for your lifestyle.