Bullmastiff vs Irish Setter
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

Irish Setter
The Irish Setter is a friendly and energetic breed known for its striking red coat and graceful, athletic build. Renowned for their intelligence and gentle temperament, these dogs make excellent family companions and excel in various canine sports and activities.
Large
High
11-15 years yrs
N/A cm
Quick Comparison
| Trait | Bullmastiff | Irish Setter |
|---|---|---|
| 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 | Irish Setter |
|---|---|---|
| Size | Extra Large | Large |
| Energy Level | Medium | High |
| Grooming | Medium | High |
| Trainability | challenging | Moderate |
| Barking Level | Low | Medium |
| Shedding Level | Medium | Medium |
| Chew strength | Hard | Moderate |
| Housing | Yard | Yard |
Owner Fit & Decision Guide
Owner Match
| Trait | Bullmastiff | Irish Setter |
|---|---|---|
| Experience Level | Experienced | Beginner |
| 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 Irish Setter. |
Bullmastiff Dealbreakers
- Cannot meet 60-60 min daily exercise
- Cannot commit to grooming needs
Irish Setter Dealbreakers
- Cannot meet 90-120 min daily exercise
- Cannot commit to grooming needs
Surrender Risk
| Factor | Bullmastiff | Irish Setter |
|---|---|---|
| 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 | Irish Setter |
|---|---|---|
| Prey Drive | ||
| Watchdog Ability | ||
| Stranger Friendly | ||
| Drool Level | ||
| Wanderlust |
Vocalization
| Trait | Bullmastiff | Irish Setter |
|---|---|---|
| Barking Level | Low | Medium |
| Howling Tendency | ||
| Whining Tendency | Low | Low |
| Separation Vocalization |
Safety & Reliability
| Trait | Bullmastiff | Irish Setter |
|---|---|---|
| Escape Artist | ||
| Dog Park Suitable | ||
| Off-Leash Reliable | ||
| Small Animal Safe | ||
| Leash Reactivity | ||
| Resource Guarding Risk | Low | Low |
Bullmastiff Social Traits
Moderate
Selective
Irish Setter Social Traits
Low
Generally friendly
Training
Bullmastiff
- ** Positive reinforcement is the only viable path. Harsh corrections often cause this breed to shut down or become defensive.
Irish Setter
- ** Positive reinforcement is essential. They work for engagement and fun, not just duty.
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.
Irish Setter Considerations
This is a "Velcro" breed in the truest sense. Irish Setters were bred to work in tandem with humans and possess a profound need for companionship. They do not tolerate isolation well. Left alone for standard workdays (8+ hours), they frequently develop destructive behaviors (chewing drywall, digging) and distress vocalization (howling/barking).
Irish Setters are notoriously slow to mature. While physically full-grown by 12-18 months, their mental maturity often lags until age 3 or 4. Owners must be prepared for a large, powerful dog that retains the impulse control and chaotic energy of a 4-month-old puppy for several years.
As a bird dog, their instinct to scan the horizon and chase is hardwired. They are generally not safe around birds, and their recall can vanish instantly if a visual trigger (squirrel, bird, leaf) activates their prey drive. This makes off-leash reliability in unfenced areas a significant challenge.
Multi-Species Compatibility
| Species | Bullmastiff | Irish Setter |
|---|---|---|
| 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 | Irish Setter |
|---|---|---|
| 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 | Irish Setter |
|---|---|---|
| Puppy Difficulty | ||
| Destructive Phase | 6-18 | 6-18 |
| House Training | Moderate | Moderate |
| Crate Training | Medium | Medium |
| Adolescent Regression |
Bullmastiff: Bullmastiff puppies require consistent training and patience.
Irish Setter: Irish Setter puppies require consistent training and patience.
Life Stages Timeline
| Stage | Bullmastiff | Irish Setter |
|---|---|---|
| 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 | Irish Setter |
|---|---|---|
| Height | N/A | N/A cm |
| Weight | Not enough data yet | Not enough data yet |
| Size Category | Extra Large | Large |
| Lifespan | 7–9 years | 11–15 years |
| Litter Size | 4-8 | 4-8 |
Bullmastiff Coat
Irish Setter Coat
Lineage & Origin
| Detail | Bullmastiff | Irish Setter |
|---|---|---|
| Original Purpose | Developed in mid-19th century England, the Bullmastiff was created by gamekeepers to combat poachers | setting (crouching) game birds on the moors |
| Origin | N/A | in Ireland in the 18th century |
Breeding Details
| Detail | Bullmastiff | Irish Setter |
|---|---|---|
| C-Section Rate | Varies | Varies |
| Whelping Difficulty | Medium | Medium |
| Puppy Mortality Rate | Low | Low |
Physical Risks
| Risk | Bullmastiff | Irish Setter |
|---|---|---|
| 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
Irish Setter Health Issues
Bullmastiff Suggested Tests
- OFA/PennHIP for hip/elbow dysplasia
- Echocardiogram for cardiac issues
- CERF for eye conditions
- Prophylactic gastropexy
Irish Setter Suggested Tests
- CLAD (DNA)
- PRA (rcd1 & rcd4 DNA)
- OFA/PennHIP clearances for hips and thyroid
Health Risk Overview
| Risk Factor | Bullmastiff | Irish Setter |
|---|---|---|
| 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 | Irish Setter |
|---|---|---|
| Skin Allergies | ||
| Environmental Allergies | ||
| Stomach Sensitivity | Low | Low |
| Food Allergies |
Health Maintenance
| Care Item | Bullmastiff | Irish Setter |
|---|---|---|
| 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.
Irish Setter Senior Care
Common Senior Issues
- Arthritis
- Vision decline
- Cognitive changes
Senior care varies by individual health.
Grooming & Care
Bullmastiff
medium maintenanceIrish Setter
high maintenanceLifestyle Compatibility
Bullmastiff Daily Life
Irish Setter Daily Life
Housing & Legal Restrictions
| Restriction | Bullmastiff | Irish Setter |
|---|---|---|
| BSL Restricted | ||
| Common Rental Ban | ||
| Insurance Blacklist | ||
| Weight Category | Under 50lbs | Under 50lbs |
Climate Tolerance
| Climate | Bullmastiff | Irish Setter |
|---|---|---|
| Heat Tolerance | ||
| Cold Tolerance | ||
| Water Affinity | Medium | High |
Travel Compatibility
| Activity | Bullmastiff | Irish Setter |
|---|---|---|
| Car Travel | Good | Good |
| Camping | ||
| Beach Friendly | ||
| Hiking Rating | ||
| Cabin Flight Eligible | ||
| Hotel Friendly Size |
Niche Suitability
| Role | Bullmastiff | Irish Setter |
|---|---|---|
| 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 | Irish Setter |
|---|---|---|
| Purchase Price | N/A | N/A |
| Initial Cost Range | $1,000–$2,500 | $1,000–$2,500 |
| Cost Tier |
Ongoing Costs
| Cost | Bullmastiff | Irish Setter |
|---|---|---|
| Monthly Range | $180–$300 | $140–$220 |
| Yearly Range | $2,160–$3,600 | $1,680–$2,640 |
| Food / Month | $100-150 | $80-120 |
| Insurance / Month | $80-150 | $60-100 |
| Grooming / Session | N/A | $70-100 |
| Vet Routine / Year | $500-800 | $300-600 |
| Monthly Cost Tier |
Bullmastiff Lifetime Cost
N/A
Irish Setter Lifetime Cost
N/A
Quirks & Fun Facts
Daily Quirks
| Quirk | Bullmastiff | Irish Setter |
|---|---|---|
| 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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