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Great Pyrenees vs Portuguese Water Dog

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

TraitGreat PyreneesPortuguese Water Dog
Weight85115 lbs3560 lbs
Lifespan1012 yrs1113 yrs
Est. monthly cost$130–$220$100–$170
Energy level
Grooming needs
Shedding
Trainability
Good with kids
Good with other pets
Vocalization

Where Great Pyrenees and Portuguese Water Dog differ most

  • Adult weight: Great Pyrenees 85–115 lbs · Portuguese Water Dog 35–60 lbsGreat Pyrenees much heavier
  • Energy level: Great Pyrenees 2/5 · Portuguese Water Dog 5/5Portuguese Water Dog much higher-energy
  • Daily exercise: Great Pyrenees ~40 min · Portuguese Water Dog ~75 minPortuguese Water Dog much needs more
  • Shedding: Great Pyrenees 4/5 · Portuguese Water Dog 1/5Great Pyrenees much sheds more
  • Est. monthly cost: Great Pyrenees $130–220 · Portuguese Water Dog $100–170Great Pyrenees much costlier
  • Trainability: Great Pyrenees 3/5 · Portuguese Water Dog 5/5Portuguese Water Dog easier to train

Full trait-by-trait breakdown

TraitGreat PyreneesPortuguese Water DogVerdict
Adult weight85–115 lbs35–60 lbsGreat Pyrenees much heavier
Energy level2/55/5Portuguese Water Dog much higher-energy
Daily exercise~40 min~75 minPortuguese Water Dog much needs more
Grooming needs4/54/5About the same
Shedding4/51/5Great Pyrenees much sheds more
Trainability3/55/5Portuguese Water Dog easier to train
Good with kids5/54/5Great Pyrenees rated higher
Good with other pets4/53/5Great Pyrenees rated higher
Vocalization4/53/5Great Pyrenees more vocal
Lifespan10–12 yrs11–13 yrsAbout the same
Est. monthly cost$130–220$100–170Great Pyrenees much costlier
Hypoallergenic realityNoLower-shedding (not hypoallergenic)Differs — see profiles

Which one should you choose?

These two sit at opposite ends of both size and energy. The Water Dog's fishing-boat heritage left it with a genuine need for vigorous daily exercise and mental stimulation, while the Great Pyrenees is a giant, low-energy guardian breed content with a shorter walk and long stretches of calm watchfulness. Obedience training goes far more smoothly with the eager, quick-to-learn Water Dog, since the Pyrenees was bred to make its own calls rather than defer to a handler. Coat care is demanding for both, just for different reasons: the Water Dog's curly coat needs regular clipping despite barely shedding, while the Pyrenees sheds heavily and needs frequent brushing to match. Nighttime barking is far more likely from the Pyrenees than the Water Dog. An athletic, highly trainable companion points toward the Water Dog; a self-directed property guardian points toward the Pyrenees.

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.