Boston Terrier vs Portuguese Water Dog
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
Portuguese Water Dog
Also known as: PWD, Portie, Cão de Água Português, Obama Dog
The Portuguese Water Dog (PWD) is a highly energetic and intelligent breed known for its curly, hypoallergenic coat and exceptional swimming abilities. Originally bred to work alongside Portuguese fishermen—herding fish into nets, retrieving lost tackle, and swimming messages between boats—they are devoted 'Velcro dogs' who bond intensely with their families.
Medium
High
11-14 yrs
43-57 cm
16-27 kg
Quick Comparison
| Trait | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| 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 | Portuguese Water Dog |
|---|---|---|
| Size | Small | Medium |
| Energy Level | Medium | High |
| Grooming | Low | High |
| Trainability | Easy | Easy |
| Barking Level | Low | Medium |
| Shedding Level | Low | Low |
| Chew strength | Moderate | Moderate |
| Housing | Apartment | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Experience Level | Beginner | Intermediate |
| 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 willing to hire professional groomer. Works from home or can provide midday activity. Has access to swimming opportunities. Tolerant of a shadow dog that demands interaction. |
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
Portuguese Water Dog Dealbreakers
- Sedentary lifestyle - if you hate walking/swimming, this dog becomes neurotic and destructive
- Budget constraints - if $100/month for grooming is a hardship
- Long work hours - if everyone is gone 9-5 without dog walker or daycare
Surrender Risk
| Factor | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| 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 | Grooming & Energy - owners underestimate coat maintenance leading to severe matting, Mouthiness in puppyhood surprises and overwhelms owners, Sheer amount of interaction the dog demands |
Temperament & Personality
Behavior Comparison
| Trait | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Barking Level | Low | Medium |
| Howling Tendency | ||
| Whining Tendency | Low | High |
| Separation Vocalization |
Safety & Reliability
| Trait | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| 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
Portuguese Water Dog Social Traits
Medium
Generally friendly with proper socialization
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
Portuguese Water Dog
- Use high-value treats and toys - 'Because it pays well' works better than 'Because I said so'
- Keep sessions varied and engaging - they get bored with repetition
- Channel mouthiness into retrieving games and teaching them to carry objects
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.
Portuguese Water Dog Considerations
PWDs were bred to work on small fishing boats alongside their masters all day. They follow you into the bathroom and may develop severe separation anxiety if left alone 8+ hours. Prone to demand barking and whining if ignored.
As a retriever breed, they interact with the world through their mouths. PWD puppies are notoriously 'nippy' and oral—this is not aggression but can be painful and frightening for young children.
This breed is famous for dancing on hind legs and jumping up to greet faces. While charming to some, it's a significant fall risk for elderly owners or small children.
Professional grooming every 6-8 weeks at $100-150 is mandatory, not optional. Neglecting this leads to severe matting that damages skin and requires shave-down.
Multi-Species Compatibility
| Species | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| With Cats | Excellent - generally great with cats, especially if introduced young | Generally safe if socialized - may chase running animals but usually stop when animal stops |
| Small Mammals | Caution - may retain terrier ratting instincts with hamsters/guinea pigs | Caution - may try to chase and retrieve |
| Birds / Reptiles | Caution - should not be trusted alone with free-roaming birds | Not a livestock guardian - may try to herd or play with stock |
Advanced Behavior
| Trait | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Predatory Sequence Risk | Arrested | Arrested |
| Biddability | High | High |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | N/A | N/A |
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).
Portuguese Water Dog: Predatory sequence: Orient -> Eye -> Stalk -> Chase -> Grab-Bite. The Kill-Bite and Dissect phases are inhibited. This makes them generally safe with other dogs and often cats, though they may annoy them.
First Year & Life Stages
First Year Challenges
| Challenge | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-12 | 6-18 |
| House Training | Medium | Moderate |
| Crate Training | High | High |
| 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.
Portuguese Water Dog: PWD puppies are 'land sharks' - their retrieving instinct manifests as severe nipping and mouthing. Combined with high intelligence and energy, they require more management than a Golden Retriever (6/10) but less than a Malinois (9/10).
Life Stages Timeline
| Stage | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Puppy Phase | 12 months | 12 months |
| Adolescence | 6-18 | 12-36 |
| Adult Years | 1-8 | 3-9 |
| Senior Onset | ~8 years | ~9 years |
| Peak Energy Age | 6-18 months | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Height | 38-43 cm | 43-57 cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Small | Medium |
| Lifespan | 11–13 years | 11–14 years |
| Litter Size | 3-5 | 4-8 |
Boston Terrier Coat
Portuguese Water Dog Coat
Lineage & Origin
| Detail | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Original Purpose | Originally bred for pit fighting and ratting (weighed up to 44 lbs), rapidly refined to companion dog by late 1800s | Fishing crew member - herding fish into nets, swimming messages between boats, retrieving broken nets and tackle |
| Origin | Boston, Massachusetts, USA, late 19th century (English Bulldog x White English Terrier) | Portugal, coastal regions, centuries-old heritage |
Breeding Details
| Detail | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| C-Section Rate | 92% | Low |
| Whelping Difficulty | Extreme | Easy |
| Puppy Mortality Rate | Medium | Low |
Physical Risks
| Risk | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| 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
Portuguese Water Dog Health Issues
Boston Terrier Suggested Tests
- JHC (Juvenile Hereditary Cataracts) DNA Test - CRITICAL
- BOAS Assessment (functional breathing test)
- Patella Evaluation
- Ophthalmologist Evaluation
- Cardiac Exam
Portuguese Water Dog Suggested Tests
- prcd-PRA DNA test
- EOPRA DNA test
- JDCM DNA test
- GM-1 DNA test
- OFA Hip Evaluations (or PennHIP)
- Annual Eye Exams (CAER)
Health Risk Overview
| Risk Factor | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Cancer Risk | Low | Low |
| Cardiac Risk | Low | Medium |
| Neurological Risk | Medium | Low |
| CCL/ACL Tear Risk | Medium | Low |
| Vet Burden Tier | High | Medium |
Sensitivities & Allergies
| Sensitivity | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | High | Moderate |
| Food Allergies | Chicken, Grains |
Health Maintenance
| Care Item | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | High | Medium |
| Anal Gland Issues | Occasional | Rare |
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.
Portuguese Water Dog Senior Care
Common Senior Issues
- Arthritis/joint stiffness
- Cataracts/PRA progression
- Addison's Disease (can appear at any age)
- Hip dysplasia complications
Slow down significantly around 9+. Watch for clouding eyes (cataracts/PRA) and stiffness (arthritis).
Grooming & Care
Boston Terrier
low maintenancePortuguese Water Dog
high maintenanceLifestyle Compatibility
Boston Terrier Daily Life
Portuguese Water Dog Daily Life
Housing & Legal Restrictions
| Restriction | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 25lbs | 25-50lbs |
Climate Tolerance
| Climate | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Low | Extreme |
Travel Compatibility
| Activity | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Car Travel | Good | Excellent |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Service Dog | Low | Medium |
| Therapy Dog | High | High |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Low | Medium |
Costs & Expenses
Upfront Costs
| Cost | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Purchase Price | $1,500-3,000 | $2,500-4,500 |
| Initial Cost Range | $1,500–$3,000 | $2,500–$4,500 |
| Cost Tier |
Ongoing Costs
| Cost | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Monthly Range | $125–$200 | $150–$300 |
| Yearly Range | $1,500–$3,000 | $2,500–$3,500 |
| Food / Month | $25-45 | $60-90 |
| Insurance / Month | $50-100 | $50-80 |
| Grooming / Session | $30-50 | $100-150 |
| Vet Routine / Year | $500-1,500 | $400-1,000 |
| Monthly Cost Tier |
Boston Terrier Lifetime Cost
$20,000-40,000
Portuguese Water Dog Lifetime Cost
$30,000-50,000
Quirks & Fun Facts
Daily Quirks
| Quirk | Boston Terrier | Portuguese Water Dog |
|---|---|---|
| Snoring | ||
| Flatulence | Frequent | Rare |
| Slobber Level | None | None |
| Smell When Wet | Mild | None |
| Zoomies Frequency | Daily (puppies) | Daily |
| 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.
Portuguese Water Dog Quirks
Counter Surfing Ninjas
Their intelligence and food motivation make them expert kitchen thieves - they can steal food with impressive stealth
The Portie Greeting
Famous for dancing on hind legs and jumping up to greet faces - can be a fall risk for elderly or children
The Talker
They 'talk' with grumbles, moans, and varied barks as common ways to communicate their needs
Water Obsession
Most will dive into any body of water including mud puddles and swimming pools
Frequently Asked Questions
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