Boston Terrier vs Saint Bernard
A side-by-side comparison to help you find the right breed for your lifestyle.
Boston Terrier
Also known as: American Gentleman, Boston Bull, Boston Bull Terrier
The Boston Terrier is a compact, tuxedo-marked companion known as the 'American Gentleman' for its polite demeanor. Originally bred in Boston from English Bulldogs and White English Terriers, this breed transitioned from pit fighter to beloved family companion. They're adaptable, affectionate, and perfect for apartment living - but come with significant health considerations.
Small
Medium
11-13 yrs
38-43 cm
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 | Boston Terrier | 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 | Boston Terrier | Saint Bernard |
|---|---|---|
| Size | Small | Extra Large |
| Energy Level | Medium | Medium |
| Grooming | Low | High |
| Trainability | Easy | challenging |
| Barking Level | Low | High |
| Shedding Level | Low | High |
| Chew strength | Moderate | Hard |
| Housing | Apartment | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Boston Terrier | Saint Bernard |
|---|---|---|
| Experience Level | Beginner | Experienced |
| First-Time Owner | ||
| Ideal Owner | Apartment dweller, work-from-home professional, retiree, or anyone wanting an affectionate companion who can handle a gassy, snoring shadow | Active individual or family who can provide adequate exercise and training for a Saint Bernard. |
Boston Terrier Dealbreakers
- Want a running partner (heat intolerance)
- Away from home 8+ hours daily (separation anxiety)
- Cannot afford pet insurance or $2,000 emergency fund
- Repulsed by snoring or flatulence
Saint Bernard Dealbreakers
- Cannot meet 30-60 min daily exercise
- Cannot tolerate heavy shedding
Surrender Risk
| Factor | Boston Terrier | Saint Bernard |
|---|---|---|
| Risk Level | Low | Medium |
| Primary Reasons | Health/Financial - cannot afford surgery for knees or management of severe allergies, Housing - landlord restrictions or moving to unsuitable climate, Underestimating flatulence and snoring | Underestimated exercise needs, Behavioral challenges, Cost of care |
Temperament & Personality
Behavior Comparison
| Trait | Boston Terrier | Saint Bernard |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Boston Terrier | Saint Bernard |
|---|---|---|
| Barking Level | Low | High |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Boston Terrier | Saint Bernard |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
Boston Terrier Social Traits
None
Generally good with other dogs, some male posturing with intact males
Saint Bernard Social Traits
Moderate
Generally friendly
Training
Boston Terrier
- They are sensitive - harsh corrections cause them to shut down
- Use their high food motivation to your advantage
- Be consistent - don't tolerate jumping/nipping just because they're small
Saint Bernard
- ** Positive reinforcement is mandatory. They are sensitive souls; harsh corrections will cause them to shut down or become fearful.
Boston Terrier Considerations
Boston Terriers are extreme 'Velcro dogs' that bond intensely. Left alone for more than 4-6 hours, they develop destructive chewing, house soiling, and persistent vocalization. Not suitable if all adults work full-time away from home.
It is impossible to overstate this issue. Their brachycephalic anatomy causes them to swallow air while eating, resulting in frequent, potent gas. If flatulence repulses you rather than amuses you, this is NOT your breed.
Their shortened airways prevent efficient panting. They are at HIGH RISK of heatstroke at temperatures above 25°C (77°F). Air conditioning is a requirement, not a luxury. You cannot take them jogging or hiking in summer.
Expect loud snoring, snorting, and episodes of reverse sneezing that sound like the dog is choking. If you need silence to sleep, this breed is not for you.
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 | Boston Terrier | Saint Bernard |
|---|---|---|
| With Cats | Excellent - generally great with cats, especially if introduced young | Generally safe with proper introduction |
| Small Mammals | Caution - may retain terrier ratting instincts with hamsters/guinea pigs | Supervision required |
| Birds / Reptiles | Caution - should not be trusted alone with free-roaming birds | Caution advised |
Advanced Behavior
| Trait | Boston Terrier | Saint Bernard |
|---|---|---|
| Predatory Sequence Risk | Arrested | Medium |
| Biddability | High | Low |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | N/A | 18 months |
Boston Terrier: Predatory sequence is Eye -> Stalk -> Chase. Grab-Bite and Kill-Bite are largely inhibited, though they may still dispatch small rodents (terrier heritage).
First Year & Life Stages
First Year Challenges
| Challenge | Boston Terrier | Saint Bernard |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-12 | 6-18 |
| House Training | Medium | Challenging |
| Crate Training | High | Medium |
| Adolescent Regression |
Boston Terrier: Housetraining can be challenging due to small bladders and dislike of cold/wet weather. They're not destructive chewers by nature - main challenge is potty training.
Saint Bernard: Saint Bernard puppies require consistent training and patience.
Life Stages Timeline
| Stage | Boston Terrier | Saint Bernard |
|---|---|---|
| Puppy Phase | 12 months | 12 months |
| Adolescence | 6-18 | 6-18 |
| Adult Years | 1-8 | 2-8 |
| Senior Onset | ~8 years | ~8 years |
| Peak Energy Age | 6-18 months | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Boston Terrier | Saint Bernard |
|---|---|---|
| Height | 38-43 cm | N/A |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Small | Extra Large |
| Lifespan | 11–13 years | 8–10 years |
| Litter Size | 3-5 | 4-8 |
Boston Terrier Coat
Saint Bernard Coat
Lineage & Origin
| Detail | Boston Terrier | Saint Bernard |
|---|---|---|
| Original Purpose | Originally bred for pit fighting and ratting (weighed up to 44 lbs), rapidly refined to companion dog by late 1800s | The Saint Bernard was developed by monks at the Great St |
| Origin | Boston, Massachusetts, USA, late 19th century (English Bulldog x White English Terrier) | N/A |
Breeding Details
| Detail | Boston Terrier | Saint Bernard |
|---|---|---|
| C-Section Rate | 92% | Varies |
| Whelping Difficulty | Extreme | Medium |
| Puppy Mortality Rate | Medium | Low |
Physical Risks
| Risk | Boston Terrier | Saint Bernard |
|---|---|---|
| Bloat / GDV Risk | Low | Low |
| Slippery Floor Risk | Low | Low |
| Min Fence Height | 1.2m | 1.5m |
| Dig / Escape Risk | None | Low |
Health & Common Conditions
Boston Terrier Health Issues
Saint Bernard Health Issues
Boston Terrier Suggested Tests
- JHC (Juvenile Hereditary Cataracts) DNA Test - CRITICAL
- BOAS Assessment (functional breathing test)
- Patella Evaluation
- Ophthalmologist Evaluation
- Cardiac Exam
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 | Boston Terrier | Saint Bernard |
|---|---|---|
| Cancer Risk | Low | Medium |
| Cardiac Risk | Low | Low |
| Neurological Risk | Medium | Low |
| CCL/ACL Tear Risk | Medium | Low |
| Vet Burden Tier | High | Medium |
Sensitivities & Allergies
| Sensitivity | Boston Terrier | Saint Bernard |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | High | Low |
| Food Allergies | Chicken, Grains |
Health Maintenance
| Care Item | Boston Terrier | Saint Bernard |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | High | Low |
| Anal Gland Issues | Occasional | Occasional |
Senior Care & Aging
Boston Terrier Senior Care
Common Senior Issues
- Cataracts / Nuclear Sclerosis (bluish haze)
- Arthritis (especially knees)
- Cognitive decline
Most seniors develop some form of eye cloudiness. Use ramps for furniture to protect spine and arthritic joints.
Saint Bernard Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Boston Terrier
low maintenanceSaint Bernard
high maintenanceLifestyle Compatibility
Boston Terrier Daily Life
Saint Bernard Daily Life
Housing & Legal Restrictions
| Restriction | Boston Terrier | Saint Bernard |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 25lbs | Under 50lbs |
Climate Tolerance
| Climate | Boston Terrier | Saint Bernard |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Low | Medium |
Travel Compatibility
| Activity | Boston Terrier | Saint Bernard |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Boston Terrier | Saint Bernard |
|---|---|---|
| Service Dog | Low | Low |
| Therapy Dog | High | Low |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Low | Low |
Costs & Expenses
Upfront Costs
| Cost | Boston Terrier | Saint Bernard |
|---|---|---|
| Purchase Price | $1,500-3,000 | N/A |
| Initial Cost Range | $1,500–$3,000 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Boston Terrier | Saint Bernard |
|---|---|---|
| Monthly Range | $125–$200 | $180–$330 |
| Yearly Range | $1,500–$3,000 | $2,160–$3,960 |
| Food / Month | $25-45 | $100-180 |
| Insurance / Month | $50-100 | $80-150 |
| Grooming / Session | $30-50 | N/A |
| Vet Routine / Year | $500-1,500 | $500-800 |
| Monthly Cost Tier |
Boston Terrier Lifetime Cost
$20,000-40,000
Saint Bernard Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Boston Terrier | Saint Bernard |
|---|---|---|
| Snoring | ||
| Flatulence | Frequent | Occasional |
| Slobber Level | None | Low |
| Smell When Wet | Mild | Moderate |
| Zoomies Frequency | Daily (puppies) | Occasional |
| Counter Surfing | ||
| Digging Tendency | None | Low |
Boston Terrier Quirks
The Gas Factory
Expect frequent, potent flatulence due to swallowing air while eating. Slow-feeders and probiotics help reduce but never eliminate.
Reverse Sneezing
A spasm of the soft palate that sounds like a terrifying asthma attack. Usually harmless - gently massage throat to stop it.
The Sunbather
They LOVE to bake in sun patches, but must be supervised to prevent heatstroke. Their heat regulation is poor.
The Burrower
They love to sleep under blankets and will burrow into bedding. Perfect for cold nights, concerning for hot ones.
Frequently Asked Questions
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