Chihuahua vs Saint Bernard
A side-by-side comparison to help you find the right breed for your lifestyle.
Chihuahua
The Chihuahua is a small dog breed known for its lively personality and alertness, often possessing a big-dog attitude despite its petite size. Originating from Mexico, this breed is characterized by its expressive eyes, large ears, and comes in a variety of colors and coat types.
Extra Small
Medium
14-18 years yrs
N/A
Saint Bernard
The Saint Bernard is a large, gentle dog breed known for its impressive size, friendly demeanor, and history as a rescue dog in the Swiss Alps. Renowned for their loyalty and affectionate nature, these dogs make excellent family companions and are easily recognizable by their distinctive, expressive faces and thick, warm coats.
Extra Large
Medium
8-10 yrs
N/A
Quick Comparison
| Trait | Chihuahua | Saint Bernard |
|---|---|---|
| Energy | ||
| Trainability | ||
| Grooming Needs | ||
| Family Friendly | ||
| Independence |
Key Characteristics
| Good with Kids | ||
| Good with Dogs | ||
| Good with Cats | ||
| Hypoallergenic | ||
| Apartment Friendly | ||
| First-Time Owner OK |
| Detail | Chihuahua | Saint Bernard |
|---|---|---|
| Size | Extra Small | Extra Large |
| Energy Level | Medium | Medium |
| Grooming | Low | High |
| Trainability | challenging | challenging |
| Barking Level | High | High |
| Shedding Level | Medium | High |
| Housing | Apartment | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Chihuahua | Saint Bernard |
|---|---|---|
| Experience Level | Experienced | Experienced |
| First-Time Owner | ||
| Ideal Owner | Active individual or family who can provide adequate exercise and training for a Chihuahua. | Active individual or family who can provide adequate exercise and training for a Saint Bernard. |
Chihuahua Dealbreakers
- Cannot meet 20-30 min daily exercise
- Cannot commit to grooming needs
Saint Bernard Dealbreakers
- Cannot meet 30-60 min daily exercise
- Cannot tolerate heavy shedding
Surrender Risk
| Factor | Chihuahua | Saint Bernard |
|---|---|---|
| Risk Level | Medium | Medium |
| Primary Reasons | Underestimated exercise needs, Behavioral challenges, Cost of care | Underestimated exercise needs, Behavioral challenges, Cost of care |
Temperament & Personality
Behavior Comparison
| Trait | Chihuahua | Saint Bernard |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Chihuahua | Saint Bernard |
|---|---|---|
| Barking Level | High | High |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Chihuahua | Saint Bernard |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
Chihuahua Social Traits
Moderate
Selective
Saint Bernard Social Traits
Moderate
Generally friendly
Training
Chihuahua
- ** Positive reinforcement is the only option. Harsh methods cause them to shut down or bite defensively.
Saint Bernard
- ** Positive reinforcement is mandatory. They are sensitive souls; harsh corrections will cause them to shut down or become fearful.
Saint Bernard Considerations
Despite their size, Saints are profoundly needy. They do not tolerate isolation well and can develop destructive separation anxiety. A 160lb dog with anxiety can destroy drywall, doors, and furniture in minutes.
While benevolent, they are not blindly obedient like a Golden Retriever. They possess a slow-burning stubbornness; if a Saint Bernard decides not to move, you cannot physically force them. This requires patience and psychological motivation rather than physical correction.
Between 8 and 24 months, they are essentially giant, clumsy puppies. They can unintentionally knock over children, grandparents, and furniture. Leash manners must be solidified before they reach full weight, or they will become dangerous to walk.
Multi-Species Compatibility
| Species | Chihuahua | Saint Bernard |
|---|---|---|
| With Cats | Generally safe with proper introduction | Generally safe with proper introduction |
| Small Mammals | Supervision required | Supervision required |
| Birds / Reptiles | Caution advised | Caution advised |
Advanced Behavior
| Trait | Chihuahua | Saint Bernard |
|---|---|---|
| Predatory Sequence Risk | Medium | Medium |
| Biddability | Low | Low |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | 18 months | 18 months |
First Year & Life Stages
First Year Challenges
| Challenge | Chihuahua | Saint Bernard |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-12 | 6-18 |
| House Training | Moderate | Challenging |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Chihuahua: Chihuahua puppies require consistent training and patience.
Saint Bernard: Saint Bernard puppies require consistent training and patience.
Life Stages Timeline
| Stage | Chihuahua | Saint Bernard |
|---|---|---|
| Puppy Phase | 12 months | 12 months |
| Adolescence | 6-18 | 6-18 |
| Adult Years | 2-8 | 2-8 |
| Senior Onset | ~8 years | ~8 years |
| Peak Energy Age | 1-3 years | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Chihuahua | Saint Bernard |
|---|---|---|
| Height | N/A | N/A |
| Weight | N/A | N/A |
| Size Category | Extra Small | Extra Large |
| Lifespan | 14-18 years years | 8-10 years |
| Litter Size | 4-8 | 4-8 |
Chihuahua Coat
Saint Bernard Coat
Lineage & Origin
| Detail | Chihuahua | Saint Bernard |
|---|---|---|
| Original Purpose | The Chihuahua's lineage traces back to the Techichi, a mute companion dog of the Toltec civilization | The Saint Bernard was developed by monks at the Great St |
| Origin | coat gene | N/A |
Breeding Details
| Detail | Chihuahua | Saint Bernard |
|---|---|---|
| C-Section Rate | Varies | Varies |
| Whelping Difficulty | Medium | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Chihuahua | Saint Bernard |
|---|---|---|
| Bloat / GDV Risk | Low | Low |
| Slippery Floor Risk | Low | Low |
| Min Fence Height | 1.5m | 1.5m |
| Dig / Escape Risk | Low | Low |
Health & Common Conditions
Chihuahua Health Issues
Saint Bernard Health Issues
Chihuahua Suggested Tests
- Regular dental check-ups and cleanings
- Annual cardiac auscultation
- Orthopedic check for patellar luxation
Saint Bernard Suggested Tests
- OFA/PennHIP certifications for hips and elbows
- Ophthalmologist clearances for eyes
- Cardiac exams for heart health
Health Risk Overview
| Risk Factor | Chihuahua | Saint Bernard |
|---|---|---|
| Cancer Risk | Medium | Medium |
| Cardiac Risk | Low | Low |
| Neurological Risk | Low | Low |
| CCL/ACL Tear Risk | Low | Low |
| Vet Burden Tier | Medium | Medium |
Sensitivities & Allergies
| Sensitivity | Chihuahua | Saint Bernard |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies |
Health Maintenance
| Care Item | Chihuahua | Saint Bernard |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | Low | Low |
| Anal Gland Issues | Occasional | Occasional |
Senior Care & Aging
Chihuahua Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Saint Bernard Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Chihuahua
low maintenanceSaint Bernard
high maintenanceLifestyle Compatibility
Chihuahua Daily Life
Saint Bernard Daily Life
Housing & Legal Restrictions
| Restriction | Chihuahua | Saint Bernard |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Chihuahua | Saint Bernard |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Medium | Medium |
Travel Compatibility
| Activity | Chihuahua | Saint Bernard |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Chihuahua | Saint Bernard |
|---|---|---|
| Service Dog | Low | Low |
| Therapy Dog | Low | Low |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Low | Low |
Costs & Expenses
Upfront Costs
| Cost | Chihuahua | Saint Bernard |
|---|---|---|
| Purchase Price | N/A | N/A |
| Initial Cost Range | $1,000–$2,500 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Chihuahua | Saint Bernard |
|---|---|---|
| Monthly Range | $50–$110 | $180–$330 |
| Yearly Range | $600–$1,320 | $2,160–$3,960 |
| Food / Month | $20-50 | $100-180 |
| Insurance / Month | $30-60 | $80-150 |
| Grooming / Session | $0-50 | N/A |
| Vet Routine / Year | $20-50 | $500-800 |
| Monthly Cost Tier |
Chihuahua Lifetime Cost
N/A
Saint Bernard Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Chihuahua | Saint Bernard |
|---|---|---|
| Snoring | ||
| Flatulence | Occasional | Occasional |
| Slobber Level | Low | Low |
| Smell When Wet | Moderate | Moderate |
| Zoomies Frequency | Occasional | Occasional |
| Counter Surfing | ||
| Digging Tendency | Low | Low |
Frequently Asked Questions
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