Borzoi vs Bullmastiff
A side-by-side comparison to help you find the right breed for your lifestyle.

Borzoi
The Borzoi, also known as the Russian Wolfhound, is a graceful and elegant sighthound known for its strikingly tall and slender build, long silky coat, and gentle demeanor. Originally bred for hunting wolves in Russia, this breed is celebrated for its speed, agility, and affectionate nature towards families.
Extra Large
Medium
7-10 years yrs
minimum 81cm cm

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
Quick Comparison
| Trait | Borzoi | Bullmastiff |
|---|---|---|
| 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 | Borzoi | Bullmastiff |
|---|---|---|
| Size | Extra Large | Extra Large |
| Energy Level | Medium | Medium |
| Grooming | Medium | Medium |
| Trainability | challenging | challenging |
| Barking Level | Low | Low |
| Shedding Level | Medium | Medium |
| Chew strength | Light | Hard |
| Housing | Yard | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Borzoi | Bullmastiff |
|---|---|---|
| Experience Level | Experienced | Experienced |
| First-Time Owner | ||
| Ideal Owner | Active individual or family who can provide adequate exercise and training for a Borzoi. | Active individual or family who can provide adequate exercise and training for a Bullmastiff. |
Borzoi Dealbreakers
- Cannot meet 60-80 min daily exercise
- Cannot commit to grooming needs
Bullmastiff Dealbreakers
- Cannot meet 60-60 min daily exercise
- Cannot commit to grooming needs
Surrender Risk
| Factor | Borzoi | Bullmastiff |
|---|---|---|
| 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 | Borzoi | Bullmastiff |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Borzoi | Bullmastiff |
|---|---|---|
| Barking Level | Low | Low |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Borzoi | Bullmastiff |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
Borzoi Social Traits
Moderate
Generally friendly
Bullmastiff Social Traits
Moderate
Selective
Training
Borzoi
- ** Positive reinforcement only. Harsh methods cause them to shut down or become defensive.
Bullmastiff
- ** Positive reinforcement is the only viable path. Harsh corrections often cause this breed to shut down or become defensive.
Borzoi Considerations
The Borzoi possesses a predatory sequence (Eye → Stalk → Chase → Grab → Kill). They are hardwired to chase anything that moves quickly. This makes them a significant risk to cats, small dogs, rabbits, and even wildlife. A Borzoi that lives peacefully with an indoor cat may still kill that same cat if they encounter it running outdoors.
They are not biddable. They do not obey commands for the sake of pleasing you. If they see prey, their recall is virtually non-existent. They require a securely fenced area (minimum 6ft/1.8m) to run; "invisible fences" are useless against their drive.
They are often described as "cat-like." They may not greet you at the door with enthusiasm or want to cuddle constantly. They are affectionate on their own terms.
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.
Multi-Species Compatibility
| Species | Borzoi | Bullmastiff |
|---|---|---|
| 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 | Borzoi | Bullmastiff |
|---|---|---|
| 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 | Borzoi | Bullmastiff |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 6-18 |
| House Training | Easy | Moderate |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Borzoi: Borzoi puppies require consistent training and patience.
Bullmastiff: Bullmastiff puppies require consistent training and patience.
Life Stages Timeline
| Stage | Borzoi | Bullmastiff |
|---|---|---|
| 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 | Borzoi | Bullmastiff |
|---|---|---|
| Height | minimum 81cm cm | N/A |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Extra Large | Extra Large |
| Lifespan | 7–10 years | 7–9 years |
| Litter Size | 4-8 | 4-8 |
Borzoi Coat
Bullmastiff Coat
Lineage & Origin
| Detail | Borzoi | Bullmastiff |
|---|---|---|
| Original Purpose | The Borzoi (formerly Russian Wolfhound) was developed by the Russian aristocracy for coursing wolves | Developed in mid-19th century England, the Bullmastiff was created by gamekeepers to combat poachers |
| Origin | N/A | N/A |
Breeding Details
| Detail | Borzoi | Bullmastiff |
|---|---|---|
| C-Section Rate | Varies | Varies |
| Whelping Difficulty | Medium | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Borzoi | Bullmastiff |
|---|---|---|
| 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
Borzoi Health Issues
Bullmastiff Health Issues
Borzoi Suggested Tests
- Prophylactic gastropexy
- Annual cardiac screening (echocardiogram)
- Genetic testing of parents for PRA
- Regular dental care
- Consult a vet experienced with sighthounds for anesthesia
Bullmastiff Suggested Tests
- OFA/PennHIP for hip/elbow dysplasia
- Echocardiogram for cardiac issues
- CERF for eye conditions
- Prophylactic gastropexy
Health Risk Overview
| Risk Factor | Borzoi | Bullmastiff |
|---|---|---|
| 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 | Borzoi | Bullmastiff |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies |
Health Maintenance
| Care Item | Borzoi | Bullmastiff |
|---|---|---|
| Nail Growth Rate | Normal | Normal |
| Eye Care Needs | Low | Low |
| Anal Gland Issues | Occasional | Occasional |
Senior Care & Aging
Borzoi Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Bullmastiff Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Borzoi
medium maintenanceBullmastiff
medium maintenanceLifestyle Compatibility
Borzoi Daily Life
Bullmastiff Daily Life
Housing & Legal Restrictions
| Restriction | Borzoi | Bullmastiff |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Borzoi | Bullmastiff |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Medium | Medium |
Travel Compatibility
| Activity | Borzoi | Bullmastiff |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Borzoi | Bullmastiff |
|---|---|---|
| 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 | Borzoi | Bullmastiff |
|---|---|---|
| Purchase Price | N/A | N/A |
| Initial Cost Range | $1,000–$2,500 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Borzoi | Bullmastiff |
|---|---|---|
| Monthly Range | $180–$300 | $180–$300 |
| Yearly Range | $2,160–$3,600 | $2,160–$3,600 |
| Food / Month | $100-150 | $100-150 |
| Insurance / Month | $80-150 | $80-150 |
| Grooming / Session | N/A | N/A |
| Vet Routine / Year | $500-800 | $500-800 |
| Monthly Cost Tier |
Borzoi Lifetime Cost
N/A
Bullmastiff Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Borzoi | Bullmastiff |
|---|---|---|
| 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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