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 Leonberger (41–77 kg, 7–9 years) and the Saint Bernard (64–82 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.
Energy levels are well-matched between the Leonberger and Saint Bernard — both need similar daily exercise.
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.
 Leonberger |
 Saint Bernard |
|
|---|---|---|
| Group | Working | Working |
| Origin | Germany | Switzerland |
| Weight | 41–77 kg | 64–82 kg |
| Height | 65–80 cm | 66–76 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 |
LeonbergerCalm, gentle, friendly, devoted. Excellent with children.
60 minutes of moderate daily exercise. Cool conditions.
Long heavy double coat. Brush 3× weekly, daily during seasonal moults.
Hip and elbow dysplasia. Bloat / GDV. Bone cancer. Leonberger polyneuropathy (DNA test). Heart conditions.
Full Leonberger profile →
Saint BernardGentle, patient, friendly, quiet. Saints are renowned for their tolerance with children and other animals. They're slow to mature mentally — expect puppy behaviour for years.
45–60 minutes of moderate daily exercise in cool weather. Heat-sensitive — limit summer exercise.
Long-haired and short-haired varieties. Long: brush 3× weekly. Short: weekly brush. Drool requires bibs.
Hip and elbow dysplasia. Bloat / GDV. Cardiomyopathy. Cancers. Wobbler syndrome. Heat stroke.
Full Saint Bernard profile →Cool-climate families with space.
Families with children, large homes, cool climates.
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