Chihuahua vs Shih Tzu

Where Chihuahua and Shih Tzu differ most

• Adult weight: Chihuahua 2–6 lbs · Shih Tzu 9–16 lbsShih Tzu much heavier
• Grooming needs: Chihuahua 1/5 · Shih Tzu 5/5Shih Tzu much more upkeep
• Lifespan: Chihuahua 14–16 yrs · Shih Tzu 10–16 yrsChihuahua much longer-lived
• Est. monthly cost: Chihuahua $50–100 · Shih Tzu $80–150Shih Tzu much costlier
• Energy level: Chihuahua 3/5 · Shih Tzu 2/5Chihuahua higher-energy
• Daily exercise: Chihuahua ~20 min · Shih Tzu ~30 minShih Tzu needs more

Full trait-by-trait breakdown

Which one should you choose?

Both are true lapdogs bred for companionship rather than work, and both stay comfortable with modest, short daily exercise well suited to apartment life. The difference that matters most day to day is coat: the Shih Tzu's long, flowing coat needs regular brushing and professional grooming to avoid mats, while the Chihuahua's coat needs essentially nothing. Temperament also splits a bit — the Shih Tzu tends to be more evenly affectionate across a household and more tolerant with careful young kids, while the Chihuahua often narrows its loyalty to one person and can be less forgiving of rough handling. Training takes patience with either breed, since neither ranks among the most eager-to-please learners. Both are prone to vocalizing, though the Chihuahua tends to be the more frequent barker. Choose the Shih Tzu if a plush, groomed coat appeals and you're willing to maintain it; choose the Chihuahua for the lowest grooming bill in the toy category.