Chihuahua vs Shih Tzu

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

Shih Tzu

Size
9–16 lbs, 9–11 in
Lifespan
10–18 years
Exercise
Low
Grooming
High
Good with Kids
Yes
Good with Pets
Yes
Affectionate Playful Outgoing Loyal

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 Shih Tzu

The Shih Tzu — meaning "lion dog" in Mandarin — was bred for centuries within the walls of the Chinese imperial palace, likely from crosses between the Lhasa Apso and the Pekingese. These small, sturdy dogs stand 9 to 10.5 inches tall and weigh 9 to 16 pounds, with a slightly longer body than they are tall and a proud, flowing gait. Their luxurious double coat grows continuously and can reach floor length, coming in virtually every color and combination, with a distinctive chrysanthemum-like pattern on the face where hair grows in all directions.

Temperament & Personality

Shih Tzus are affectionate, outgoing, and delightfully playful — bred solely as companion dogs, they have centuries of experience perfecting the art of being a devoted lapdog. They are friendly with nearly everyone, including children, strangers, and other pets, making them one of the most sociable toy breeds available. Shih Tzus are happy, adaptable, and surprisingly sturdy for their size, with a mischievous charm that keeps their families entertained.

Pros

  • Exceptionally friendly and sociable with people of all ages and other animals
  • Low exercise requirements — short walks and indoor play satisfy their needs
  • Minimal shedding when coat is kept in a shorter "puppy clip"
  • Adaptable and content in apartments, condos, and any living situation

Cons

  • Long coat demands daily brushing or frequent professional grooming
  • Brachycephalic structure contributes to breathing issues and heat intolerance
  • Prone to eye problems (proptosis, corneal ulcers), ear infections, and dental disease
  • Can be stubborn about housetraining — patience and consistency are essential

A Shih Tzu's sole mission in life is to love and be loved — find yours waiting on Puplister today.

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Frequently Asked Questions

What is the difference between a Chihuahua and a Shih Tzu?
The Chihuahua is 3–6 lbs, 5–8 in sized while the Shih Tzu is 9–16 lbs, 9–11 in sized. They differ in size (3–6 lbs, 5–8 in vs 9–16 lbs, 9–11 in), lifespan (14–16 years vs 10–18 years), and care requirements.
Which breed is better with kids, Chihuahua or Shih Tzu?
Chihuahua is not typically good with kids. Shih Tzu is generally good with kids.
Which breed lives longer, Chihuahua or Shih Tzu?
The Chihuahua has a lifespan of 14–16 years while the Shih Tzu has a lifespan of 10–18 years.

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