Bernedoodle vs Mastiff (English Mastiff): Which Suits Your Home?

The English Mastiff is one of the heaviest breeds you'll find on this site, 120 to 250 pounds and 27 to 32 inches tall -- a dog that can outweigh most adult humans. The Bernedoodle's 20-to-90-pound range doesn't come close, even on its largest standard line. This isn't a close call on size; it's worth thinking hard about whether your home, car, and furniture can handle a dog that might weigh a quarter-ton.

Despite the size, the Mastiff is a genuinely low-energy dog -- exercise need rated low (2/5) against the Bernedoodle's high (4/5). Mastiffs are famous couch dogs that want a walk or two, not a workout. If low daily activity is what you're after in a large dog, the Mastiff delivers that in a way the more active Bernedoodle doesn't.

Grooming favors the Mastiff, low (2/5) against the Bernedoodle's high (4/5) -- a short, dense coat with minimal upkeep. Shedding runs the other way, moderate (3/5) for the Mastiff versus low (2/5) for the Bernedoodle. Given the sheer surface area of a 250-pound dog, even 'moderate' shedding can mean a lot of actual hair.

Barking is where the Mastiff really stands out -- very low (1/5), even quieter than the Bernedoodle's already-low 2/5. Mastiffs have a reputation as surprisingly calm, quiet dogs for their size. Apartment suitability ties low (2/5) for both, though a 200-pound dog in a small unit brings practical problems -- space, furniture, stairs -- that the rating alone doesn't capture.

The Bernedoodle is the more trainable, beginner-friendly choice here: very high (5/5) trainability against the Mastiff's moderate (3/5), and high (4/5) for first-time owners versus the Mastiff's low (2/5). A Mastiff's size means poor training has outsized consequences -- a stubborn 200-pound dog is a genuinely difficult management problem in a way a stubborn 60-pound dog isn't.

Both breeds tie at very high (5/5) with kids, and Mastiffs are frequently described as gentle giants around children they know. The Bernedoodle pulls ahead with other dogs, very high (5/5) versus moderate (3/5) for the Mastiff, and with strangers too, high (4/5) against moderate (3/5) -- the Mastiff's protective streak, listed in its temperament, likely explains some of that reserve.

Lifespan is the sharpest divide: 12-18 years for the Bernedoodle against just 9-11 for the Mastiff, a typical giant-breed tradeoff. Hip dysplasia, elbow dysplasia, bloat, and progressive retinal atrophy appear on both lists. The Mastiff's list adds cancer, dilated cardiomyopathy, and bone cancer -- serious conditions that come with the territory of carrying that much body weight.

Owning a Mastiff costs considerably more: $150-350 a month against $120-220 for the Bernedoodle, and $2,200-4,500 in year one versus $1,800-3,200. Cost level reflects it, very high (5/5) for the Mastiff versus high (4/5) for the Bernedoodle -- feeding and medicating a 200-plus-pound dog is simply a bigger line item.