Side-by-side comparison of two popular breeds — temperament, exercise, grooming, lifespan and common health issues. Use it to decide which breed fits your home.
The Bullmastiff (45–59 kg, 7–9 years) and the Rottweiler (35–60 kg, 8–10 years) sit in different — or sometimes overlapping — corners of dog ownership. Here's how they really compare for an everyday Irish or UK family.
Rottweiler is the significantly higher-energy dog of the two. If you can't commit to 60+ minutes of active exercise daily plus mental stimulation, the Bullmastiff is the lower-friction choice.
Both have manageable grooming routines — the Rottweiler demands slightly more, but neither needs daily fuss.
Insurance premiums for breeds with brachycephalic, joint or cancer predispositions run 20–40% above average — check before you commit. We have a free quote calculator here.
 Bullmastiff |
 Rottweiler |
|
|---|---|---|
| Group | Working | Working |
| Origin | England | Germany |
| Weight | 45–59 kg | 35–60 kg |
| Height | 61–69 cm | 56–69 cm |
| Lifespan | 7–9 years | 8–10 years |
| Energy level | ||
| Trainability | ||
| Grooming needs | ||
| Good with kids | ||
| Good with other pets | ||
| Hypoallergenic | ||
| Watchdog instinct | ||
| Novice-owner OK |
BullmastiffCalm, devoted, courageous, naturally protective.
30–45 minutes daily.
Short coat, weekly brush. Drool requires towels.
Hip dysplasia. Bloat / GDV. Cardiomyopathy. Cancer (over-represented). Lifespan tragically short — 7–9 years.
Full Bullmastiff profile →
RottweilerConfident, calm, courageous. Rotties are famously affectionate with their own people (and lean — the "Rottie lean" is iconic) but reserved or aloof with strangers. Early, ongoing socialisation is non-negotiable. Not naturally aggressive — but they will defend if they feel they need to.
60–90 minutes of structured exercise daily, plus mental work. They excel at obedience, tracking and weight-pulling. Heavy bones and slow growth mean puppies under 18 months should avoid impact (jumping, jogging, long runs).
Short, dense double coat — moderate shedding year-round, heavier twice yearly. Weekly brush, more during moults. Bath every 6–8 weeks.
Hip and elbow dysplasia. Osteosarcoma (bone cancer) is sadly common — early neutering may worsen risk; many vets recommend waiting until 18–24 months. Aortic stenosis. Bloat / GDV. Lifespan is short for the breed (8–10 years).
Full Rottweiler profile →Experienced owners, families with older children, secure homes.
Experienced owners, families with older children and time, training enthusiasts, secure rural or suburban homes.
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