FetchBreedFind Your Breed

Bernese Mountain Dog vs Mastiff

Side-by-side comparison for prospective owners weighing both breeds.

TraitBernese Mountain DogMastiff
Weight70115 lbs120230 lbs
Lifespan710 yrs610 yrs
Est. monthly cost$130–$220$150–$280
Energy level
Grooming needs
Shedding
Trainability
Good with kids
Good with other pets
Vocalization

Where Bernese Mountain Dog and Mastiff differ most

  • Adult weight: Bernese Mountain Dog 70–115 lbs · Mastiff 120–230 lbsMastiff much heavier
  • Grooming needs: Bernese Mountain Dog 4/5 · Mastiff 1/5Bernese Mountain Dog much more upkeep
  • Energy level: Bernese Mountain Dog 3/5 · Mastiff 2/5Bernese Mountain Dog higher-energy
  • Daily exercise: Bernese Mountain Dog ~45 min · Mastiff ~40 minBernese Mountain Dog needs more
  • Shedding: Bernese Mountain Dog 5/5 · Mastiff 3/5Bernese Mountain Dog sheds more
  • Trainability: Bernese Mountain Dog 4/5 · Mastiff 3/5Bernese Mountain Dog easier to train

Full trait-by-trait breakdown

TraitBernese Mountain DogMastiffVerdict
Adult weight70–115 lbs120–230 lbsMastiff much heavier
Energy level3/52/5Bernese Mountain Dog higher-energy
Daily exercise~45 min~40 minBernese Mountain Dog needs more
Grooming needs4/51/5Bernese Mountain Dog much more upkeep
Shedding5/53/5Bernese Mountain Dog sheds more
Trainability4/53/5Bernese Mountain Dog easier to train
Good with kids5/54/5Bernese Mountain Dog rated higher
Good with other pets4/53/5Bernese Mountain Dog rated higher
Vocalization2/51/5Bernese Mountain Dog more vocal
Lifespan7–10 yrs6–10 yrsAbout the same
Est. monthly cost$130–220$150–280Mastiff costlier

Which one should you choose?

The Mastiff is about as low-energy as a giant breed gets, content to lounge for most of the day and needing only modest exercise, while the Bernese, though still calm by working-dog standards, is noticeably more active and enjoys a longer daily walk or hike. Trainability tips toward the Bernese, which is generally more eager to please and quicker to pick up cues, whereas the Mastiff's independent, sometimes stubborn streak asks for more patience. Grooming favors the Mastiff's short, simple coat over the Bernese's heavier double coat, which sheds substantially and needs regular brushing. Both breeds tend to be gentle, patient presences around children despite their imposing size, though the Mastiff's sheer bulk means even affectionate leaning or sitting can be a lot for a small child. Choose the Mastiff for the lowest-energy giant-breed experience; choose the Bernese for a more active, trainable, and classically handsome farm-dog temperament.

Whichever breed fits your life, consider adoption or breed-specific rescue first — many purebred and mixed-breed dogs and cats are already waiting for homes.

General breed information, not veterinary advice — consult a vet for your pet's specific health, diet, and behavior needs.