Chihuahua vs Portuguese Water Dog

Which dog breed is right for you?

Chihuahua

Size
3–6 lbs, 5–8 in
Lifespan
14–16 years
Exercise
Low
Grooming
Low
Good with Kids
No
Good with Pets
Yes
Bold Charming Alert Devoted

Portuguese Water Dog

Size
35–60 lbs, 17–23 in
Lifespan
11–13 years
Exercise
High
Grooming
Moderate
Good with Kids
Yes
Good with Pets
Yes
Adventurous Athletic Loyal Obedient

About the Chihuahua

The Chihuahua is the world's smallest dog breed, originating from the Mexican state of Chihuahua where ancestors of the breed were kept by the ancient Toltec civilization. Standing just 5–8 inches tall and weighing a mere 2–6 pounds, these tiny dogs come in smooth-coat and long-coat varieties with virtually every color and pattern combination imaginable. Despite their diminutive size, Chihuahuas carry themselves with a bold, terrier-like confidence that belies their fragile frame.

Temperament & Personality

Chihuahuas are fiercely devoted to one person — often forming an almost obsessive bond with their chosen human. They are alert, spirited, and surprisingly courageous, frequently standing up to dogs many times their size without hesitation. While they can be wonderful companions for older children who handle them gently, their small size and tendency toward snappiness make them a poor match for households with toddlers.

Pros

  • Perfect apartment dogs — minimal space and exercise requirements
  • Exceptionally long lifespan of 14–18 years, among the longest of any breed
  • Portable size makes them easy travel companions for on-the-go owners
  • Low food costs and minimal grooming needs — especially the smooth-coat variety

Cons

  • Prone to patellar luxation, heart murmurs, hydrocephalus, and dental overcrowding
  • Fragile bones — easily injured by falls, rough play, or being stepped on
  • Notoriously difficult to housebreak due to tiny bladders and stubborn temperament
  • Tendency toward excessive barking and aggression toward strangers if not properly socialized

Discover your perfect pint-sized companion — explore Chihuahuas looking for forever homes right here on Puplister.

About the Portuguese Water Dog

The Portuguese Water Dog was developed centuries ago along Portugal's coast, where it served as an indispensable fisherman's companion — herding fish into nets, retrieving lost tackle, and swimming messages between boats. These robust, medium-sized dogs stand 17 to 23 inches tall and weigh 35 to 60 pounds, with a strong, muscular build optimized for swimming. Their coat comes in two varieties — curly or wavy — in black, white, brown, or combinations thereof, and grows continuously like human hair rather than shedding seasonally.

Temperament & Personality

Portuguese Water Dogs are spirited, obedient, and deeply bonded to their families — they thrive on being included in activities and do not do well relegated to the backyard. They are playful and patient with children, typically friendly with other dogs, and possess an enthusiasm for life that is both infectious and demanding. Their intelligence and eagerness to work make them highly trainable, though they need a job or purpose to remain content.

Pros

  • Low-shedding, hypoallergenic-type coat suitable for many allergy sufferers
  • Outstanding swimming ability and love of water activities
  • Highly trainable, biddable, and eager to please
  • Robust health with a lifespan of 11 to 13 years

Cons

  • High exercise demands — needs vigorous daily activity including swimming when possible
  • Coat requires regular professional grooming every 4 to 6 weeks
  • Can become mouthy and destructive if under-stimulated or left alone too long
  • Prone to hip dysplasia, progressive retinal atrophy, and GM1 storage disease

A water-loving, people-devoted companion awaits — explore Portuguese Water Dog listings on Puplister.

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Frequently Asked Questions

What is the difference between a Chihuahua and a Portuguese Water Dog?
The Chihuahua is 3–6 lbs, 5–8 in sized while the Portuguese Water Dog is 35–60 lbs, 17–23 in sized. They differ in size (3–6 lbs, 5–8 in vs 35–60 lbs, 17–23 in), lifespan (14–16 years vs 11–13 years), and care requirements.
Which breed is better with kids, Chihuahua or Portuguese Water Dog?
Chihuahua is not typically good with kids. Portuguese Water Dog is generally good with kids.
Which breed lives longer, Chihuahua or Portuguese Water Dog?
The Chihuahua has a lifespan of 14–16 years while the Portuguese Water Dog has a lifespan of 11–13 years.

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