Giant Schnauzer vs Shih Tzu
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
Shih Tzu
The Shih Tzu is a small and affectionate dog breed known for its luxurious, flowing coat and friendly, outgoing personality. Originally bred as a companion for Chinese royalty, the Shih Tzu is cherished today as a loving and devoted family pet.
Small
Low
10-16 years yrs
N/A
Quick Comparison
| Trait | Giant Schnauzer | Shih Tzu |
|---|---|---|
| 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 | Shih Tzu |
|---|---|---|
| Size | Extra Large | Small |
| Energy Level | High | Low |
| Grooming | High | High |
| Trainability | challenging | challenging |
| Barking Level | High | High |
| Shedding Level | Low | Low |
| Chew strength | N/A | Light |
| Housing | Yard | Apartment |
Owner Fit & Decision Guide
Owner Match
| Trait | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Experience Level | Advanced | Experienced |
| 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 who can provide adequate exercise and training for a Shih Tzu. |
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
Shih Tzu Dealbreakers
- Cannot meet 20-30 min daily exercise
- Cannot commit to grooming needs
Surrender Risk
| Factor | Giant Schnauzer | Shih Tzu |
|---|---|---|
| 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 | Underestimated exercise needs, Behavioral challenges, Cost of care |
Temperament & Personality
Behavior Comparison
| Trait | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Barking Level | High | High |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Giant Schnauzer | Shih Tzu |
|---|---|---|
| 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
Shih Tzu Social Traits
Moderate
Generally friendly
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
Shih Tzu
- **: Positive reinforcement only. This breed shuts down or becomes defensive with harsh correction.
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.
Multi-Species Compatibility
| Species | Giant Schnauzer | Shih Tzu |
|---|---|---|
| With Cats | High risk - only possible with strict supervision and early socialization, never guaranteed | Generally safe with proper introduction |
| Small Mammals | Dangerous - strong prey drive | Supervision required |
| Birds / Reptiles | Unsafe - predatory drive intact | Caution advised |
Advanced Behavior
| Trait | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Predatory Sequence Risk | Full | Medium |
| Biddability | Medium | Low |
| Noise Sensitivity | Low | Low |
| Territorial Barking | ||
| Same-Sex Aggression Onset | 18 months | 18 months |
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.
First Year & Life Stages
First Year Challenges
| Challenge | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-24 | 4-10 |
| House Training | Moderate | Moderate |
| Crate Training | Medium | Medium |
| 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.
Shih Tzu: Shih Tzu puppies require consistent training and patience.
Life Stages Timeline
| Stage | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Puppy Phase | 18 months | 12 months |
| Adolescence | 18-36 | 6-18 |
| Adult Years | 3-8 | 2-8 |
| Senior Onset | ~9 years | ~8 years |
| Peak Energy Age | 2-5 years | 1-3 years |
Size & Physical Characteristics
Physical Stats
| Measurement | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Height | 60-70 cm | N/A |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Extra Large | Small |
| Lifespan | 10–12 years | 10–16 years |
| Litter Size | 5-9 | 4-8 |
Giant Schnauzer Coat
Shih Tzu Coat
Lineage & Origin
| Detail | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Original Purpose | Cattle driving and guarding butcher shops/breweries | The Shih Tzu ("Lion Dog") was developed in the palaces of the Chinese Emperor, likely by crossing th |
| Origin | Bavarian Alps, Germany | Tibet) with the Pekingese |
Breeding Details
| Detail | Giant Schnauzer | Shih Tzu |
|---|---|---|
| C-Section Rate | Low | Varies |
| Whelping Difficulty | Easy | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Giant Schnauzer | Shih Tzu |
|---|---|---|
| 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
Shih Tzu Health Issues
Giant Schnauzer Suggested Tests
- Hip Dysplasia (OFA)
- Thyroid
- Eyes (CERF)
- DCM (Heart)
- DLA diversity
Shih Tzu Suggested Tests
- Renal Dysplasia (wedge biopsy or ultrasound)
- CERF/CAER eye clearances
Health Risk Overview
| Risk Factor | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Cancer Risk | High | Medium |
| Cardiac Risk | Medium | Low |
| Neurological Risk | Medium | Low |
| CCL/ACL Tear Risk | Medium | Low |
| Vet Burden Tier | High | Medium |
Sensitivities & Allergies
| Sensitivity | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies | Grain sensitivities |
Health Maintenance
| Care Item | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Nail Growth Rate | Fast | Normal |
| Eye Care Needs | Low | Low |
| Anal Gland Issues | Rare | Occasional |
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.
Shih Tzu Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Giant Schnauzer
high maintenanceShih Tzu
high maintenanceLifestyle Compatibility
Giant Schnauzer Daily Life
Shih Tzu Daily Life
Housing & Legal Restrictions
| Restriction | Giant Schnauzer | Shih Tzu |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Over 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Medium | Medium |
Travel Compatibility
| Activity | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Service Dog | Medium | Low |
| Therapy Dog | Low | Low |
| Deep Pressure Therapy | ||
| Canicross / Bikejoring | ||
| Apartment Adaptable | ||
| Tactile / Sensory Friendly | ||
| Livestock Guardian | ||
| Medical Alert | Medium | Low |
Costs & Expenses
Upfront Costs
| Cost | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Purchase Price | $2,500-3,500 | N/A |
| Initial Cost Range | $2,500–$3,500 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Monthly Range | $200–$350 | $70–$120 |
| Yearly Range | $3,000–$4,500 | $840–$1,440 |
| Food / Month | $80-120 | $30-50 |
| Insurance / Month | $60-100 | $40-70 |
| Grooming / Session | $100-200 | $60-100 |
| Vet Routine / Year | $500-1,000 | $500-800 |
| Monthly Cost Tier |
Giant Schnauzer Lifetime Cost
$35,000-60,000
Shih Tzu Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Giant Schnauzer | Shih Tzu |
|---|---|---|
| Snoring | ||
| Flatulence | Occasional | Occasional |
| Slobber Level | Light | Low |
| Smell When Wet | Mild | Moderate |
| Zoomies Frequency | Daily | Occasional |
| 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.
Frequently Asked Questions
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