Giant Schnauzer vs Portuguese Water Dog
A side-by-side comparison to help you find the right breed for your lifestyle.
Giant Schnauzer
Also known as: Riesenschnauzer, Munich Schnauzer
The Giant Schnauzer is a powerful and intelligent large dog breed known for its imposing presence, distinctive beard, and loyal temperament. Originating from Germany, this is the largest of the three Schnauzer breeds and was originally bred for driving cattle and guarding. They are celebrated for their courage, trainability, and protective nature.
Extra Large
High
10-12 yrs
60-70 cm
35-47 kg
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 | Giant Schnauzer | 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 | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Size | Extra Large | Medium |
| Energy Level | High | High |
| Grooming | High | High |
| Trainability | challenging | Easy |
| Barking Level | High | Medium |
| Shedding Level | Low | Low |
| Chew strength | N/A | Moderate |
| Housing | Yard | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Experience Level | Advanced | Intermediate |
| First-Time Owner | ||
| Ideal Owner | Experienced dog owner who understands canine body language and drive theory. Active lifestyle with time for 2+ hours of daily engagement. Confident personality that can be firm and consistent. Has secure property with 6ft fence. Works from home or can provide midday activity. No other dogs of same sex in household. | 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. |
Giant Schnauzer Dealbreakers
- First-time dog owner
- Sedentary lifestyle
- Passive personality - cannot firmly enforce rules
- Live in rental housing (breed bans and size limits)
- Have other dogs of the same sex
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 | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Risk Level | High | Medium |
| Primary Reasons | Bit me/my child/my other dog, Owner failed to set boundaries, 90lb dog now challenges for control, Same-sex aggression emerged at maturity, Cannot afford insurance or housing | 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 | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Barking Level | High | Medium |
| Howling Tendency | ||
| Whining Tendency | Low | High |
| Separation Vocalization |
Safety & Reliability
| Trait | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | High | Low |
Giant Schnauzer Social Traits
Very High
Very selective - same-sex aggression common, best as only dog or with submissive opposite-sex dog
Portuguese Water Dog Social Traits
Medium
Generally friendly with proper socialization
Training
Giant Schnauzer
- They need 'No' to mean 'No' - not permissive training
- Be a confident leader - if you are passive, they will assume leadership
- They are intelligent problem solvers who will exploit inconsistency
- Socialization is a race against the clock before suspicion sets in
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
Giant Schnauzer Considerations
Male Giant Schnauzers are notoriously intolerant of other males, and females can be equally combative. This often emerges at sexual maturity (18-24 months), turning a peaceful puppy household into a war zone. Many owners end up 'crate and rotate' (permanent separation).
Unlike eager-to-please breeds, Giant Schnauzers constantly ask 'Why should I?' They test boundaries relentlessly. Passive or inconsistent owners will find themselves with a dog that assumes leadership, leading to resource guarding and territorial aggression.
Their heritage involves vermin control and cattle driving. The 'kill bite' part of the predatory sequence is often intact. Cats, rabbits, and small dogs are at significant risk.
Giant Schnauzers appear on many insurance 'dangerous dog' lists. Premiums may be 2-3x higher than average, or coverage denied entirely. Check insurance BEFORE getting this dog.
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 | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| With Cats | High risk - only possible with strict supervision and early socialization, never guaranteed | Generally safe if socialized - may chase running animals but usually stop when animal stops |
| Small Mammals | Dangerous - strong prey drive | Caution - may try to chase and retrieve |
| Birds / Reptiles | Unsafe - predatory drive intact | Not a livestock guardian - may try to herd or play with stock |
Advanced Behavior
| Trait | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Predatory Sequence Risk | Full | Arrested |
| Biddability | Medium | High |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | 18 months | N/A |
Giant Schnauzer: The predatory sequence (Eye->Stalk->Chase->Grab->Kill) is often intact from their vermin control heritage. They are true guard dogs who will physically confront threats - not just alert bark. They require an owner who can call them off immediately. Independent worker but cooperative with established handler.
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 | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-24 | 6-18 |
| House Training | Moderate | Moderate |
| Crate Training | Medium | High |
| Adolescent Regression |
Giant Schnauzer: Unlike friendly Labs, Giant Schnauzer puppies combine sharp puppy teeth with a desire to dominate. They challenge handling early. Socialization is a race against the clock before their suspicion of strangers sets in. They are 'beavers' that will dismantle furniture if bored.
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 | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Puppy Phase | 18 months | 12 months |
| Adolescence | 18-36 | 12-36 |
| Adult Years | 3-8 | 3-9 |
| Senior Onset | ~9 years | ~9 years |
| Peak Energy Age | 2-5 years | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Height | 60-70 cm | 43-57 cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Extra Large | Medium |
| Lifespan | 10–12 years | 11–14 years |
| Litter Size | 5-9 | 4-8 |
Giant Schnauzer Coat
Portuguese Water Dog Coat
Lineage & Origin
| Detail | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Original Purpose | Cattle driving and guarding butcher shops/breweries | Fishing crew member - herding fish into nets, swimming messages between boats, retrieving broken nets and tackle |
| Origin | Bavarian Alps, Germany | Portugal, coastal regions, centuries-old heritage |
Breeding Details
| Detail | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| C-Section Rate | Low | Low |
| Whelping Difficulty | Easy | Easy |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Bloat / GDV Risk | High | Low |
| Slippery Floor Risk | Medium | Low |
| Min Fence Height | 1.8m | 1.5m |
| Dig / Escape Risk | Low | Low |
Health & Common Conditions
Giant Schnauzer Health Issues
Portuguese Water Dog Health Issues
Giant Schnauzer Suggested Tests
- Hip Dysplasia (OFA)
- Thyroid
- Eyes (CERF)
- DCM (Heart)
- DLA diversity
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 | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Cancer Risk | High | Low |
| Cardiac Risk | Medium | Medium |
| Neurological Risk | Medium | Low |
| CCL/ACL Tear Risk | Medium | Low |
| Vet Burden Tier | High | Medium |
Sensitivities & Allergies
| Sensitivity | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Moderate |
| Food Allergies | Grain sensitivities |
Health Maintenance
| Care Item | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Nail Growth Rate | Fast | Normal |
| Eye Care Needs | Low | Medium |
| Anal Gland Issues | Rare | Rare |
Senior Care & Aging
Giant Schnauzer Senior Care
Common Senior Issues
- Cancer (especially toe cancer)
- Hip dysplasia progression
- Hypothyroidism
- Cognitive decline
Rapid decline can occur in senior years. Cancer is the primary concern and often the limiting factor on lifespan. Any broken nail or toe swelling must be treated as potential emergency.
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
Giant Schnauzer
high maintenancePortuguese Water Dog
high maintenanceLifestyle Compatibility
Giant Schnauzer Daily Life
Portuguese Water Dog Daily Life
Housing & Legal Restrictions
| Restriction | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Over 50lbs | 25-50lbs |
Climate Tolerance
| Climate | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Medium | Extreme |
Travel Compatibility
| Activity | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Car Travel | Good | Excellent |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Service Dog | Medium | Medium |
| Therapy Dog | Low | High |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Medium | Medium |
Costs & Expenses
Upfront Costs
| Cost | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Purchase Price | $2,500-3,500 | $2,500-4,500 |
| Initial Cost Range | $2,500–$3,500 | $2,500–$4,500 |
| Cost Tier |
Ongoing Costs
| Cost | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Monthly Range | $200–$350 | $150–$300 |
| Yearly Range | $3,000–$4,500 | $2,500–$3,500 |
| Food / Month | $80-120 | $60-90 |
| Insurance / Month | $60-100 | $50-80 |
| Grooming / Session | $100-200 | $100-150 |
| Vet Routine / Year | $500-1,000 | $400-1,000 |
| Monthly Cost Tier |
Giant Schnauzer Lifetime Cost
$35,000-60,000
Portuguese Water Dog Lifetime Cost
$30,000-50,000
Quirks & Fun Facts
Daily Quirks
| Quirk | Giant Schnauzer | Portuguese Water Dog |
|---|---|---|
| Snoring | ||
| Flatulence | Occasional | Rare |
| Slobber Level | Light | None |
| Smell When Wet | Mild | None |
| Zoomies Frequency | Daily | Daily |
| Counter Surfing | ||
| Digging Tendency | Low | Low |
Giant Schnauzer Quirks
The Soggy Beard
The beard is a sponge - you will have water trails on your floor and wet spots on your lap after every drink.
Schnauzer Talk
They are vocal communicators - grumbling, woo-wooing, and groaning to express themselves.
Bathroom Shadow
You will never be alone again. If you close a door, they will wait on the other side. They need to be with their handler to feel secure.
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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