Greyhound vs Shih Tzu
A side-by-side comparison to help you find the right breed for your lifestyle.

Greyhound
The Greyhound is the fastest dog breed in the world.
Large
Medium
10-12 yrs
N/A

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 | Greyhound | 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 | Greyhound | Shih Tzu |
|---|---|---|
| Size | Large | Small |
| Energy Level | Medium | Low |
| Grooming | Low | High |
| Trainability | challenging | challenging |
| Barking Level | Low | High |
| Shedding Level | Medium | Low |
| Chew strength | Light | Light |
| Housing | Apartment | Apartment |
Owner Fit & Decision Guide
Owner Match
| Trait | Greyhound | Shih Tzu |
|---|---|---|
| Experience Level | Experienced | Experienced |
| First-Time Owner | ||
| Ideal Owner | Active individual or family who can provide adequate exercise and training for a Greyhound. | Active individual or family who can provide adequate exercise and training for a Shih Tzu. |
Greyhound Dealbreakers
- Cannot meet 45-60 min daily exercise
- Cannot commit to grooming needs
Shih Tzu Dealbreakers
- Cannot meet 20-30 min daily exercise
- Cannot commit to grooming needs
Surrender Risk
| Factor | Greyhound | Shih Tzu |
|---|---|---|
| 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 | Greyhound | Shih Tzu |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Greyhound | Shih Tzu |
|---|---|---|
| Barking Level | Low | High |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Greyhound | Shih Tzu |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
Greyhound Social Traits
Moderate
Generally friendly
Shih Tzu Social Traits
Moderate
Generally friendly
Training
Greyhound
- Keep training sessions short and varied
Shih Tzu
- **: Positive reinforcement only. This breed shuts down or becomes defensive with harsh correction.
Greyhound Considerations
This is the single most common reason for the return of retired racing Greyhounds. Most ex-racers have never been alone in their lives; they are born in a litter, raised in a pack, and kenneled with other dogs. Being left entirely alone in a silent house can induce panic, leading to destruction, howling, and house soiling.
Many Greyhounds sleep with their eyes open and fall into deep REM cycles. Because they are often not handled while sleeping in kennels, they may react defensively (growling, snapping) if touched or startled while asleep. This makes them a risk for households with young children who may not respect a "let sleeping dogs lie" rule.
A common behavioral quirk where a Greyhound will plant their feet and refuse to move during a walk. This is often a response to being overwhelmed, anxious, or simply deciding the walk is over. It is not stubbornness in the traditional sense, but a shutdown response.
Even Greyhounds that live peacefully with small dogs indoors may view them as prey if the small dog runs, squeals, or moves erratically outdoors. The transition from "friend" to "prey" can happen instantly.
Multi-Species Compatibility
| Species | Greyhound | Shih Tzu |
|---|---|---|
| With Cats | Caution - may chase | Generally safe with proper introduction |
| Small Mammals | Supervision required | Supervision required |
| Birds / Reptiles | Caution advised | Caution advised |
Advanced Behavior
| Trait | Greyhound | Shih Tzu |
|---|---|---|
| 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 | Greyhound | Shih Tzu |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 4-10 |
| House Training | Moderate | Moderate |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Greyhound: Greyhound puppies require consistent training and patience.
Shih Tzu: Shih Tzu puppies require consistent training and patience.
Life Stages Timeline
| Stage | Greyhound | Shih Tzu |
|---|---|---|
| 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 | Greyhound | Shih Tzu |
|---|---|---|
| Height | N/A | N/A |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Large | Small |
| Lifespan | 10–12 years | 10–16 years |
| Litter Size | 4-8 | 4-8 |
Greyhound Coat
Shih Tzu Coat
Lineage & Origin
| Detail | Greyhound | Shih Tzu |
|---|---|---|
| Original Purpose | coursing—hunting game (hare, deer) by sight and speed rather than scent | The Shih Tzu ("Lion Dog") was developed in the palaces of the Chinese Emperor, likely by crossing th |
| Origin | puppyhood | Tibet) with the Pekingese |
Breeding Details
| Detail | Greyhound | Shih Tzu |
|---|---|---|
| C-Section Rate | Varies | Varies |
| Whelping Difficulty | Medium | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Greyhound | Shih Tzu |
|---|---|---|
| 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
Greyhound Health Issues
Shih Tzu Health Issues
Greyhound Suggested Tests
- Genetic testing for NDRG1
- Gastropexy (stomach tacking) for bloat prevention
- Check thyroid levels (using Greyhound reference ranges)
Shih Tzu Suggested Tests
- Renal Dysplasia (wedge biopsy or ultrasound)
- CERF/CAER eye clearances
Health Risk Overview
| Risk Factor | Greyhound | Shih Tzu |
|---|---|---|
| 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 | Greyhound | Shih Tzu |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies |
Health Maintenance
| Care Item | Greyhound | Shih Tzu |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | Low | Low |
| Anal Gland Issues | Occasional | Occasional |
Senior Care & Aging
Greyhound Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Shih Tzu Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Greyhound
low maintenanceShih Tzu
high maintenanceLifestyle Compatibility
Greyhound Daily Life
Shih Tzu Daily Life
Housing & Legal Restrictions
| Restriction | Greyhound | Shih Tzu |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Greyhound | Shih Tzu |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Medium | Medium |
Travel Compatibility
| Activity | Greyhound | Shih Tzu |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Greyhound | Shih Tzu |
|---|---|---|
| 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 | Greyhound | Shih Tzu |
|---|---|---|
| Purchase Price | N/A | N/A |
| Initial Cost Range | $1,000–$2,500 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Greyhound | Shih Tzu |
|---|---|---|
| Monthly Range | $110–$170 | $70–$120 |
| Yearly Range | $1,320–$2,040 | $840–$1,440 |
| Food / Month | $60-90 | $30-50 |
| Insurance / Month | $50-80 | $40-70 |
| Grooming / Session | $60-90 | $60-100 |
| Vet Routine / Year | N/A | $500-800 |
| Monthly Cost Tier |
Greyhound Lifetime Cost
N/A
Shih Tzu Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Greyhound | Shih Tzu |
|---|---|---|
| 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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