Breed matchup

Bullmastiff vs English Mastiff

Interactive head-to-head—swap sides, filter traits, and see who edges each lifestyle score before you read the full guides.

Bullmastiff

English Mastiff

Bullmastiff

large · England

English Mastiff

large · England

Head-to-head

Bullmastiff vs English Mastiff

English Mastiffs are heavier and often calmer couch companions; Bullmastiffs were bred as estate guardians—still massive, usually a bit more agile and watchful.

large vs large

Energy 3 vs 3

short vs short

8-10 years · 10-14 years

Biggest differences

Weight

100-130 lbs

20-50 lbs

Height

24-27 inches

15-20 inches

Lifespan

8-10 years

10-14 years

Monthly cost*

$90–$170

*Typical ownership cost band estimate—not a quote.

Lifestyle scores

Tap a trait for context. Filter by what matters most to you.

Temperament

Typical breed leanings—individuals vary.

Bullmastiff

Large English guard dog with gentle nature. Overall, Bullmastiffs are described as gentle, loyal, protective, calm. Trainability sits around 3/5 and bark tendency around 2/5, so patience and clear boundaries matter more than force.

Gentle

Loyal

Protective

Calm

English Mastiff

The English Mastiff is a wonderful dog breed known for its unique characteristics and loyal companionship. Overall, English Mastiffs are described as friendly, loyal, intelligent. Trainability sits around 5/5 and bark tendency around 3/5, so consistent positive training usually pays off quickly.

Friendly

Loyal

Intelligent

Care side by side

Grooming, exercise, and training at a glance.

Bullmastiff

Moderate exercise needs. Enjoys walks and gentle play.

English Mastiff

Daily walks and playtime needed.

Who should choose which?

Use this as a shortlist—then meet dogs and read full guides.

Choose Bullmastiff

Choose a Bullmastiff if you want a large dog with moderate energy, kids fit limited, and apartment fit poor. Temperament leans gentle and loyal.

Choose English Mastiff

Choose a English Mastiff if you prefer large size, moderate energy, kids fit excellent, and apartment fit poor. Traits include friendly and loyal.

Still deciding?

Take the lifestyle match quiz or open both breed guides for first-year costs, health screening, and adopter questions.

FAQs

What is the difference between a Bullmastiff and a English Mastiff?

English Mastiffs are heavier and often calmer couch companions; Bullmastiffs were bred as estate guardians—still massive, usually a bit more agile and watchful.

Which is better for apartments, Bullmastiff or English Mastiff?

Both score 1/5 for apartments — daily exercise still decides success.

Which is better with kids, Bullmastiff or English Mastiff?

English Mastiff scores higher with kids (5/5). Supervision still matters.

How do Bullmastiff and English Mastiff compare on energy?

Bullmastiff: 3/5 (moderate). English Mastiff: 3/5 (moderate). Match the higher-energy breed only if you can meet exercise needs daily.

References

This comparison summarizes publicly available breed-standard and veterinary education sources. Always consult your veterinarian for individual care, and meet dogs in person before deciding.