Bullmastiff vs Chow Chow
A side-by-side comparison to help you find the right breed for your lifestyle.
Bullmastiff
The Bullmastiff is a large, powerful, and loyal breed known for its protective nature and gentle temperament. Originally bred in England as a gamekeeper's companion to guard estates, this breed combines the strength of a Mastiff with the agility of a Bulldog.
Extra Large
Medium
7-9 years yrs
N/A
Chow Chow
The Chow Chow is an ancient dog breed from China known for its distinctive lion-like mane, deep-set eyes, and unique blue-black tongue. Renowned for their aloof yet loyal nature, these dignified dogs often exhibit a strong sense of independence and a protective demeanor.
Large
Low
8-12 yrs
43-51 cm
Quick Comparison
| Trait | Bullmastiff | Chow Chow |
|---|---|---|
| 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 | Bullmastiff | Chow Chow |
|---|---|---|
| Size | Extra Large | Large |
| Energy Level | Medium | Low |
| Grooming | Medium | High |
| Trainability | challenging | challenging |
| Barking Level | Low | Low |
| Shedding Level | Medium | High |
| Chew strength | Hard | Hard |
| Housing | Yard | Apartment |
Owner Fit & Decision Guide
Owner Match
| Trait | Bullmastiff | Chow Chow |
|---|---|---|
| Experience Level | Experienced | Experienced |
| First-Time Owner | ||
| Ideal Owner | Active individual or family who can provide adequate exercise and training for a Bullmastiff. | Active individual or family who can provide adequate exercise and training for a Chow Chow. |
Bullmastiff Dealbreakers
- Cannot meet 60-60 min daily exercise
- Cannot commit to grooming needs
Chow Chow Dealbreakers
- Cannot meet 45-65 min daily exercise
- Cannot tolerate heavy shedding
Surrender Risk
| Factor | Bullmastiff | Chow Chow |
|---|---|---|
| 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 | Bullmastiff | Chow Chow |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Bullmastiff | Chow Chow |
|---|---|---|
| Barking Level | Low | Low |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Bullmastiff | Chow Chow |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
Bullmastiff Social Traits
Moderate
Selective
Chow Chow Social Traits
Moderate
Selective
Training
Bullmastiff
- ** Positive reinforcement is the only viable path. Harsh corrections often cause this breed to shut down or become defensive.
Chow Chow
- ** Positive reinforcement is the only viable path. Harsh methods or physical correction will trigger defensive aggression or total shutdown [cite: 5, 6].
Bullmastiff Considerations
This is a genetically rooted trait in many Bullmastiffs. While they may coexist peacefully with dogs of the opposite sex, placing two males or two females together often results in severe conflict once they reach social maturity (18–24 months). This aggression is rarely "cured" through training; it is managed.
Bred to track and hold poachers silently without human direction, the Bullmastiff is an independent problem solver. They do not have the "will to please" of a Golden Retriever. If a command does not make sense to them, they will simply ignore it. This is often misinterpreted as stupidity; it is actually a refusal to perform rote tasks without high-value motivation.
While independent in thought, they are physically clingy. They will lean their 120-pound bodies against you, sit on your feet, and follow you from room to room. This constant physical presence can be overwhelming for owners who value personal space.
Chow Chow Considerations
The Chow Chow is frequently cited in insurance blacklists and dangerous dog legislation discussions due to a history of high-severity bite incidents. This aggression is typically territorial or protective rather than predatory toward humans, but the result is the same.
This breed has a well-documented intolerance for dogs of the same sex. This trait often emerges at sexual maturity (18-24 months) and may not be "trained out," requiring lifelong management and separation.
Unlike breeds that fawn over guests, the Chow Chow is naturally suspicious. Without intense, early socialization, this suspicion can escalate to snapping or biting when a stranger reaches to pet the "teddy bear".
Many Chows have a low tolerance for physical manipulation, making veterinary visits and grooming sessions dangerous without muzzle training and desensitization.
Multi-Species Compatibility
| Species | Bullmastiff | Chow Chow |
|---|---|---|
| With Cats | Generally safe with proper introduction | Caution - may chase |
| Small Mammals | Supervision required | Supervision required |
| Birds / Reptiles | Caution advised | Caution advised |
Advanced Behavior
| Trait | Bullmastiff | Chow Chow |
|---|---|---|
| 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 | Bullmastiff | Chow Chow |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 6-18 |
| House Training | Moderate | Easy |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Bullmastiff: Bullmastiff puppies require consistent training and patience.
Chow Chow: Chow Chow puppies require consistent training and patience.
Life Stages Timeline
| Stage | Bullmastiff | Chow Chow |
|---|---|---|
| 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 | Bullmastiff | Chow Chow |
|---|---|---|
| Height | N/A | 43-51 cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Extra Large | Large |
| Lifespan | 7–9 years | 8–12 years |
| Litter Size | 4-8 | 4-8 |
Bullmastiff Coat
Chow Chow Coat
Lineage & Origin
| Detail | Bullmastiff | Chow Chow |
|---|---|---|
| Original Purpose | Developed in mid-19th century England, the Bullmastiff was created by gamekeepers to combat poachers | The Chow Chow is a basal breed, originating in Northern China/Mongolia over 2,000 years ago |
| Origin | N/A | in Northern China/Mongolia over 2 |
Breeding Details
| Detail | Bullmastiff | Chow Chow |
|---|---|---|
| C-Section Rate | Varies | Varies |
| Whelping Difficulty | Medium | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Bullmastiff | Chow Chow |
|---|---|---|
| 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
Bullmastiff Health Issues
Chow Chow Health Issues
Bullmastiff Suggested Tests
- OFA/PennHIP for hip/elbow dysplasia
- Echocardiogram for cardiac issues
- CERF for eye conditions
- Prophylactic gastropexy
Chow Chow Suggested Tests
- Ophthalmologist Evaluation
- Orthopedic Screening (OFA or PennHIP)
- Thyroid Panel
Health Risk Overview
| Risk Factor | Bullmastiff | Chow Chow |
|---|---|---|
| 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 | Bullmastiff | Chow Chow |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies |
Health Maintenance
| Care Item | Bullmastiff | Chow Chow |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | Low | Low |
| Anal Gland Issues | Occasional | Occasional |
Senior Care & Aging
Bullmastiff Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Chow Chow Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Bullmastiff
medium maintenanceChow Chow
high maintenanceLifestyle Compatibility
Bullmastiff Daily Life
Chow Chow Daily Life
Housing & Legal Restrictions
| Restriction | Bullmastiff | Chow Chow |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Bullmastiff | Chow Chow |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Medium | Medium |
Travel Compatibility
| Activity | Bullmastiff | Chow Chow |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Bullmastiff | Chow Chow |
|---|---|---|
| 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 | Bullmastiff | Chow Chow |
|---|---|---|
| Purchase Price | N/A | N/A |
| Initial Cost Range | $1,000–$2,500 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Bullmastiff | Chow Chow |
|---|---|---|
| Monthly Range | $180–$300 | $150–$250 |
| Yearly Range | $2,160–$3,600 | $1,800–$3,000 |
| Food / Month | $100-150 | N/A |
| Insurance / Month | $80-150 | $100-150 |
| Grooming / Session | N/A | $100-150 |
| Vet Routine / Year | $500-800 | $100-150 |
| Monthly Cost Tier |
Bullmastiff Lifetime Cost
N/A
Chow Chow Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Bullmastiff | Chow Chow |
|---|---|---|
| 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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