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Bullmastiff vs American Staffordshire Terrier vs Mastiff Comparison - Dog breed selector: Bullie or Stafford or Old English Mastiff? Find the right dog for you

"Find similarities and differences between Bullmastiff vs American Staffordshire Terrier vs Mastiff" Compare Bullmastiff and American Staffordshire Terrier. Which is better: Bullmastiff or American Staffordshire Terrier or Mastiff?
Name Bullmastiff American Staffordshire Terrier Mastiff
OriginsEngland flagEngland United States flagUnited States England flagEngland
Group Working Dogs Hunting Dogs Working Dogs
Popularity Rank518328
Reviews173
User Ratings

Common Names & Aliases
Compare alternative names and nicknames used for Bullmastiff, American Staffordshire Terrier, and Mastiff breeds.
Bullie
Bully
Stafford
Staffy
Amstaff
Old English Mastiff
English Mastiff
Breed Classification
How do breed classifications differ between Bullmastiff, American Staffordshire Terrier, and Mastiff? Compare their breeding categories.
Purebred Purebred Purebred

Bullmastiff vs American Staffordshire Terrier vs Mastiff Size and Weight Comparison

Size Classification
Compare size differences between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed is the largest?
Large Medium Giant
Weight Statistics
How do weights compare between Bullmastiff, American Staffordshire Terrier, and Mastiff? Compare adult weight ranges.
Male: 110-133 pounds (50–60 kg), Female: 100-120 pounds (45-55 kg) 57-67 pounds (25-30 kg) Male: 150-250 pounds (68-113 kg), Female: 120-180 pounds (54-82 kg)
Average Weight
Which dog has a smaller / higher average weight?
Male: 121.5 pounds (50–60 kg), Female: 110 pounds (50 kg) 62 pounds (27.5 kg) Male: 200 pounds (90.5 kg), Female: 150 pounds (68 kg)
Height
Which is taller, Bullmastiff or American Staffordshire Terrier or Mastiff? Bullmastiff vs American Staffordshire Terrier vs Mastiff height comparison:
Male: 25-27 inches (63–69 cm), Female: 24-26 inches (61–66 cm) Male: 17-19 inches (43-48 cm), Female: 16-18 inches (41-46 cm) Male: 30 inches (76 cm), Female: 27.5 inches (70 cm)
Average Height
Which dog has a smaller / higher average height?
Male: 26 inches (63–69 cm), Female: 25 inches (61–66 cm) Male: 18 inches (45.5 cm), Female: 17 inches (43.5 cm) Male: 30 inches (76 cm), Female: 27.5 inches (70 cm)

Bullmastiff vs American Staffordshire Terrier vs Mastiff Price and Availability Comparison

Price Range
Compare puppy costs for Bullmastiff, American Staffordshire Terrier, and Mastiff. Find price differences between these breeds.
$1200-$1500 $800-$1000 $1200-$1500
Availability
Which is easier to get, Bullmastiff or American Staffordshire Terrier or Mastiff?
Very frequent: The Bullmastiff is quite easy to get.
Very frequent: The American Staffordshire Terrier is quite easy to get.
Very frequent: The Mastiff is quite easy to get.

Bullmastiff vs American Staffordshire Terrier vs Mastiff Trainability and Intelligence Comparison

Intelligence Rating
Compare intelligence levels between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed ranks highest?
Low to average: This canine intelligence is not the brightest one.
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Smart: The American Staffordshire Terrier dogs have great intelligence.
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Average: It takes patience to teach this breed any tricks or commands, but the effort is worth it.
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Training Difficulty
Compare training difficulty levels between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is easiest to train?
Bullmastiff dogs are quite easy to train.
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American Staffordshire Terrier dogs are easy to train.
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Mastiff dogs are quite easy to train.
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Watchdog Rating
Compare watchdog abilities of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed is most alert?
Bullmastiff dogs are one of the best watchdogs.
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American Staffordshire Terrier dogs are average watchdogs.
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Mastiff dogs are one of the best watchdogs.
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Territorial Protection
Compare territorial instincts between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed is most protective?
Bullmastiff dogs are extremely protective guard dogs.
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American Staffordshire Terrier dogs are average defenders.
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Mastiff dogs are extremely protective guard dogs.
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Bullmastiff vs American Staffordshire Terrier vs Mastiff Personality and Temperament Comparison

Personality Traits
How do personalities differ between Bullmastiff, American Staffordshire Terrier, and Mastiff? Compare temperaments.
Protective
Alert
Powerful
Courageous
Docile
Reliable
Loyal
Devoted
Calm
Courageous
Intelligent
Friendly
Loyal
Devoted
Attentive
Tenacious
Protective
Alert
Courageous
Intelligent
Affectionate
Loyal
Cheerful
Sensitivity Level
Which dog is more sensitive? What's the difference?
They are a little bit more sensitive than other dog breeds.
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American Staffordshire Terrier dogs have an average emotional level and are not the most sensitive dog breed.
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Mastiff dogs have an average emotional level and are not the most sensitive dog breed.
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Affection Level
Which is the more affectionate dog breed: Bullmastiff vs American Staffordshire Terrier vs Mastiff?
Average: Bullmastiff dogs are average dogs regarding their affection level.
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High: American Staffordshire Terrier dogs are genuinely loyal, soft and gentle, loving, and affectionate dogs toward their handlers.
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High: Mastiff dogs are genuinely loyal, soft and gentle, loving, and affectionate dogs toward their handlers.
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Social Needs
Bullmastiff vs American Staffordshire Terrier vs Mastiff social needs comparison:
Bullmastiff dogs need for social interaction is average.
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American Staffordshire Terrier dogs are a social breed.
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Mastiff dogs need for social interaction is average.
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Impulse to Wander or Roam
Which dog has a greater roaming instinct?
Bullmastiff dogs have average wanderlust potential.
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American Staffordshire Terrier dogs have average wanderlust potential.
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Mastiff dogs are not the biggest explorers.
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Prey Drive
Which dog has a higher prey drive? Which can be better for hunting?
Bullmastiff dogs have an average prey drive, which means that they don't have a high impulse to chase and catch something like a cat or any other small aminals, but it might happen.
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American Staffordshire Terrier dogs have an average prey drive, which means that they don't have a high impulse to chase and catch something like a cat or any other small aminals, but it might happen.
See more.
Their prey drive is low.
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Bullmastiff vs American Staffordshire Terrier vs Mastiff Activity and Playfulness Comparison

Barking Frequency
Compare barking frequencies of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed is most vocal?
Low: The Bullmastiff barks none to minimal.
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Average: The American Staffordshire Terrier barks occasionally.
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Low: The Mastiff barks none to minimal.
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Playful Nature
Compare playfulness levels between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed is most playful?
Bullmastiffs are not the most playful dog breed.
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The American Staffordshire Terrier is a playful breed.
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Mastiffs are not the most playful dog breed.
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Apartment Adaptability
Compare apartment suitability of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which adapts best to small spaces?
It is not the best choice if you want to keep them indoors, however, with careful exercise and several walks a day, they will tolerate the indoor environment, so it is possible to keep Bullmastiff indoors.
It is not recommended to keep the American Staffordshire Terrier breed in the home.
It is not the best choice if you want to keep them indoors, however, with careful exercise and several walks a day, they will tolerate the indoor environment, so it is possible to keep Mastiff indoors.

Bullmastiff vs American Staffordshire Terrier vs Mastiff Adaptability and Independence Comparison

Lifestyle Adaptability
Compare adaptability between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed is most flexible?
Average: Bullmastiff dogs adapt to lifestyle changes and different living environments quite okay usually.
Average: American Staffordshire Terrier dogs adapt to lifestyle changes and different living environments quite okay usually.
Mastiff dogs adapt very well to lifestyle changes and basically all living environments.
Alone Time Tolerance
Which dog can be left alone: Bullmastiff or American Staffordshire Terrier or Mastiff?
Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.
American Staffordshire Terrier dogs do best when a family member is at home during the day or if their workplace is dog-friendly so they can take the dog at work.
Just like every puppy, they are prone to panic, cry, bark, whine when they left alone by their owner.

Bullmastiff vs American Staffordshire Terrier vs Mastiff Bite Characteristics Comparison

Bite Risk Assessment
Compare biting potential between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has lowest bite risk?

Low 🔽

The Bullmastiff has a low chance of biting somebody.

Low 🔽

The American Staffordshire Terrier has a low chance of biting somebody.

Moderate

The Mastiff has an average chance of biting somebody.
Mouthing Tendency
Compare mouthing tendencies between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which uses mouth most during play?
Bullmastiff dogs have an average tendency to nip, chew, playbite, or herd people.
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American Staffordshire Terrier dogs have a strong tendency to nip, chew, play-bite, or herd people.
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Mastiff dogs have a higher than average tendency to nip, chew, playbite, or herd people.
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Bite Strength Rating
Compare bite forces between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has the strongest bite?

Between 200 and 400 PSI

Bullmastiff bite force: Ordinary.

Between 200 and 400 PSI

American Staffordshire Terrier bite force: Ordinary.

Above 400 PSI 🔼

Mastiff bite force: The Strongest.

Bullmastiff vs American Staffordshire Terrier vs Mastiff Health and Lifespan Comparison

Average Lifespan
Compare life expectancies of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed lives longest?
8-10 years
The average lifespan of Bullmastiff: 9 years
12-14 years
The average lifespan of American Staffordshire Terrier: 13 years
10-12 years
The average lifespan of Mastiff: 11 years
Climate Tolerance
Compare weather adaptability between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which handles climate changes best?
Prefers average to cold weather conditions
The Bullmastiff can adapt to well to cold weather conditions, some dogs even can be a good mountain dog.
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Prefers average to warm weather conditions
Different dogs have different preferences when it comes to weather conditions.
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Prefers average to cold weather conditions
The Mastiff can adapt to well to cold weather conditions, some dogs even can be a good mountain dog.
See more.
Health Concerns
Compare health problems common in Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has fewer health issues?
Very healthy dog breed.
The American Staffordshire Terrier is a healthy breed, but there are certain health issues that you should check with your vet regularly.
Mastiffs are commonly healthy dogs.
Vet Care Frequency
Which one may need more or less veterinary visits?
Rare
The Bullmastiff should have a complete physical check-up at least every 12-18 months (but preferably once per year).
Average
The American Staffordshire Terrier should have a complete physical check-up at least once per year.
Rare
The Mastiff should have a complete physical check-up at least every 12-18 months (but preferably once per year).
Health Problems
Which one has more or less genetic/health problems: Bullmastiff vs American Staffordshire Terrier vs Mastiff? What are the allergies, genetic diseases and concerns for them? Bullmastiff vs American Staffordshire Terrier vs Mastiff health problems comparison:
Cancer
Hypothyroidism
Progressive retinal atrophy (PRA)
Heart Problems
Entropion
Kidney Issues
Hemangiosarcoma
Lymphosarcoma
Osteosarcoma
No data available Hip Dysplasia
Cancer
Progressive retinal atrophy (PRA)
Bloat
Seizures
Cystinuria

Bullmastiff vs American Staffordshire Terrier vs Mastiff Energy and Activity Comparison

Energy Rating
Compare energy levels between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which breed is most active?
Bullmastiff dogs have a lower energy level than other dogs.
American Staffordshire Terrier dogs have an average energy level, so if you live a semi-active life, this breed can be a good choice for you.
Mastiff dogs have a lower energy level than other dogs.
Activity Requirement / Exercise Need
Bullmastiff vs American Staffordshire Terrier vs Mastiff exercise need comparison. Which dog needs more activity? Which dog needs the most exercise: Bullmastiff or American Staffordshire Terrier or Mastiff? Which dog needs the most walking? Which dog is the laziest?
Bullmastiff dogs exercise need is minimal.
American Staffordshire Terrier dogs need quite a lot of exercise.
Mastiff dogs exercise need is minimal.
Sleeping Need
Which one sleeps the least/most: Bullmastiff or American Staffordshire Terrier or Mastiff?
Bullmastiff dogs like sleeping so they do sleep a lot.
American Staffordshire Terrier dogs sleep 12-14 hours a day as an average dog and they're not considered a lazy breed.
Mastiff dogs like sleeping so they do sleep a lot.

Bullmastiff vs American Staffordshire Terrier vs Mastiff Diet and Weight Management Comparison

Obesity Tendency
Compare weight gain tendencies between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is most prone to obesity?
High: The Bullmastiff breed has a strong tendency to be overweight.
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Low to Average: The American Staffordshire Terrier has a low to the average risk for obesity.
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Average to High: If you don't pay attention to the Mastiff's weight, he can easily gain weight.
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Food Consumption
Compare food requirements between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which needs most food?
3 to 4.5 cups of high-quality dry food a day, divided into two meals. 2.5 to 3 cups of high-quality dry food a day, divided into two meals. 8 to 10 cups of high-quality dry food a day, divided into two meals

Bullmastiff vs American Staffordshire Terrier vs Mastiff Allergies and Grooming Comparison

Allergy Friendliness
Compare hypoallergenic qualities of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is best for allergy sufferers?
No See more. No See more. No See more.
Coat Colors
Compare color variations between Bullmastiff, American Staffordshire Terrier, and Mastiff. What colors are available?
Red
Fawn
Brindle
Black
Blue
White
Brown
Fawn
Brindle
Apricot
Grooming Requirements
Compare grooming needs between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which requires most maintenance?
Easy to groom: The Bullmastiff doesn't require a lot of grooming.
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Effortless: The American Staffordshire Terrier requires minimal grooming.
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Easy to groom: The Mastiff doesn't require a lot of grooming.
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Drooling Tendency
Compare drooling tendencies between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which drools least?
The Bullmastiff is a big drooler, so if you're disgusted by slobber spots on your clothes, you should choose a dog from another breed.
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The American Staffordshire Terrier is an average drooler.
See more.
The Mastiff is a big drooler, so if you're disgusted by slobber spots on your clothes, you should choose a dog from another breed.
See more.
Stinkiness Rating
Compare odor levels between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has least natural smell?

High 🔼

The Bullmastiff has a high chance of bad smell.

Medium

The American Staffordshire Terrier has an average chance of bad smell.

High 🔼

The Mastiff has a high chance of bad smell.
Coat Characteristics
Compare coat types between Bullmastiff, American Staffordshire Terrier, and Mastiff. How do their fur characteristics differ?
Rough Fine Dense
Bathing Needs
Compare bathing needs between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which requires most frequent baths?
4-6 weeks
Average. Experts recommended at least every 4-6 weeks for this family pup.
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3-4 weeks
More often than average. These dog coats tend to be longer, softer, and oilier than short-haired breeds.
See more.
4-6 weeks
Average. Experts recommended at least every 4-6 weeks for this family pup.
See more.
Shedding Level
Who sheds more Bullmastiff or American Staffordshire Terrier or Mastiff? Bullmastiff or American Staffordshire Terrier or {name3 shedding:
Bullmastiff dogs shed moderately.
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American Staffordshire Terrier dogs shed none to minimal.
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Mastiff dogs shed moderately.
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Bullmastiff vs American Staffordshire Terrier vs Mastiff Good With Comparison

Child Compatibility
Compare child-friendliness between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is best with kids?
Bullmastiff dogs are kid-friendly dogs.
American Staffordshire Terrier dogs are kid-friendly dogs.
Mastiff dogs are very kid-friendly dogs.
Pet Compatibility
Which dog breeds get along well with other animals/pets?
Bullmastiff dogs do best when they’re the only pet at the family.
American Staffordshire Terrier dogs do best when they’re the only pet at the family.
Mastiff dogs are one of the friendliest dog breeds.
Stranger Friendly
Which dog is more stranger friendly Bullmastiff or American Staffordshire Terrier or Mastiff? Which dog is more friendly?
Bullmastiff dogs are average friendly towards strangers.
American Staffordshire Terrier dogs are stranger-friendly dogs.
Mastiff dogs are average friendly towards strangers.
Cat Friendly
Which dog is more cat friendly Bullmastiff or American Staffordshire Terrier or Mastiff?
Bullmastiff dogs are not cat-friendly dogs.
American Staffordshire Terrier dogs are not cat-friendly dogs.
Mastiff dogs are very cat-friendly dogs.
Dog Friendly
Which dog is more dog friendly Bullmastiff or American Staffordshire Terrier or Mastiff?
Bullmastiff dogs are not dog-friendly.
American Staffordshire Terrier dogs are not dog-friendly.
Mastiff dogs are average friendly towards other dogs.
Good For First Time Owners
Which dog is good for the first-time owners: Bullmastiff vs American Staffordshire Terrier vs Mastiff?
Yes
Bullmastiff dogs are good for novice owners, due to their easy-going personality.
Yes
American Staffordshire Terrier dogs are good for novice owners, due to their easy-going personality.
Yes
Mastiff dogs are good for novice owners, due to their easy-going personality.
Office Friendly
Which one fits better in the office?
No
Bullmastiff is not the best dog breed for office environment.
Yes
American Staffordshire Terrier is one of the best dog breeds for office environment
No
Mastiff is not the best dog breed for office environment.
Senior Citizens Friendly
Which dog is good for elderly people?
Bullmastiffs are usually recommended for elderly people.
American Staffordshire Terriers are usually recommended for elderly people.
Mastiffs are one of the best breeds for elderly people.

Bullmastiff vs American Staffordshire Terrier vs Mastiff As a Working Dog Comparison

Service Dog Capability
Compare service dog potential between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is best suited for service work?

Not really

This breed generally not used as a service dog.
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Yes

This breed makes good as a service dog.
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Not really

This breed generally not used as a service dog.
See more.
Therapy Work Suitability
Compare therapy dog potential between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which excels in therapy work?

Yes

This breed makes a perfect therapy dog.
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Not really

This breed is generally not used as a therapy dog.
See more.

Not really

This breed is generally not used as a therapy dog.
See more.
Scent Detection Ability
Compare detection capabilities between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has best nose work ability?

Not really

They are not typically employed for this type of work, but there may be exceptional cases.

Not really

They are not typically employed for this type of work, but there may be exceptional cases.

Not really

They are not typically employed for this type of work, but there may be exceptional cases.
Search & Rescue Potential
Compare search and rescue potential between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is best for SAR work?

Not really

This dog breed is not typically used as a search and rescue dog.

Not really

This dog breed is not typically used as a search and rescue dog.

Not really

This dog breed is not typically used as a search and rescue dog.
Maritime Work Ability
Compare boating aptitude between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is best suited for water work?

Not really

Bullmastiff breed usually doesn't like being on a boat.
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Not really

American Staffordshire Terrier breed usually doesn't like being on a boat.
See more.

Not really

Mastiff breed usually doesn't like being on a boat.
See more.
Draft Work Capability
Compare cart pulling abilities between Bullmastiff, American Staffordshire Terrier, and Mastiff. Which is best for draft work?

Yes

A drafting dog or draft dog is a dog bred and used for cart pulling.
See more.

Not really

A drafting dog or draft dog is a dog bred and used for cart pulling.
See more.

Yes

A drafting dog or draft dog is a dog bred and used for cart pulling.
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Military Service Background
Compare military service history of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has most military use?

Not really

In history, this breed was not really used for combat dog.

Yes

In history, this breed was unfortunately used for combat dogs.

Not really

In history, this breed was not really used for combat dog.

Bullmastiff vs American Staffordshire Terrier vs Mastiff Reproducibility Comparison

Puppy Litter Size
Compare typical litter sizes of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has most puppies?
4-13 puppies, average 8 5-10 puppies 3-5 puppies
Pregnancy Duration
Compare gestation periods of Bullmastiff, American Staffordshire Terrier, and Mastiff. Any breeding differences?
60-64 days See more. 60-64 days See more. 60-64 days See more.
Breeding Frequency
Compare breeding intervals between Bullmastiff, American Staffordshire Terrier, and Mastiff. What's recommended?

Once a year.

More frequent breeding is not healthy.
See more.

Once a year.

More frequent breeding is not healthy.
See more.

Once a year.

More frequent breeding is not healthy.
See more.

Bullmastiff vs American Staffordshire Terrier vs Mastiff Recognition Comparison

AKC Classification
Compare AKC groups for Bullmastiff, American Staffordshire Terrier, and Mastiff. How are they classified?
Recognized by the American Kennel Club in 1934 as a Working breed. Recognized by the American Kennel Club in 1936 as a Terrier breed. Recognized by the American Kennel Club in 1885 as a Working breed.
FCI Classification
Compare FCI groups for Bullmastiff, American Staffordshire Terrier, and Mastiff. How are they classified internationally?
Recognized by FCI in the Pinscher and Schnauzer - Molossoid and Swiss Mountain and Cattledogs group, in the Molossian type section. Recognized by FCI in the Terriers group, in the Bull type Terriers section. Not recognized by FCI.
Kennel Club Recognition
Compare breed recognition status of Bullmastiff, American Staffordshire Terrier, and Mastiff. Which has most recognition?
American Canine Registry
American Kennel Club
America's Pet Registry
Canadian Kennel Club
Dog Registry of America Inc.
Federation Cynologique Internationale
Kennel Club of Great Britain
North American Purebred Registry, Inc.
American Canine Association, Inc.
Australian National Kennel Council
Continental Kennel Club
National Kennel Club
New Zealand Kennel Club
No data available American Canine Registry
American Kennel Club
America's Pet Registry
Canadian Kennel Club
Dog Registry of America Inc.
Federation Cynologique Internationale
Kennel Club of Great Britain
North American Purebred Registry, Inc.
American Canine Association, Inc.
Australian National Kennel Council
Continental Kennel Club
National Kennel Club
New Zealand Kennel Club
United Kennel Club

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