Giant10.6 yr avg
Rottweiler
AKC · Working
View breedComparison
Rottweiler vs Shih Tzu
Side-by-side comparison from peer-reviewed sources. Lifespan and health figures draw on Royal Veterinary College VetCompass and AKC breed data.
At a glance
Side-by-side
The numbers that most change day-to-day care. A citrus border marks a meaningful advantage.
Giant
Rottweiler
Lifespan10.6 yrrange 10–11
SizeGiant
Weight80–135 lb36.3–61.2 kg
Height22–27 in55.9–68.6 cm
Senior at5 yrgeriatric at 8
AKC groupWorking
Energy3/545 min/day
Trainability5/5
Shedding3/5
With kids3/5
With other dogs3/5
Small
Shih Tzu
Lifespan12.8 yrrange 12–13
SizeSmall
Weight9–16 lb4.1–7.3 kg
Height9–10.5 in22.9–26.7 cm
Senior at8 yrgeriatric at 12
AKC groupToy
Energy3/545 min/day
Trainability4/5
Shedding1/5
With kids5/5
With other dogs5/5
Health
Common health issues
Top 3 prevalence-ranked conditions for each breed. See each breed's full health profile for screening schedules and source data.
Rottweiler
- High prevalencetypical onset ~2 yr
Elbow Dysplasia
Description and veterinary guidance for Elbow Dysplasia land in Phase 4. Prevalence and onset-age figures above are drawn from https://ofa.org/diseases/disease-statistics/.
- Moderatetypical onset ~7 yr
Cataracts
Description and veterinary guidance for Cataracts land in Phase 4. Prevalence and onset-age figures above are drawn from https://ofa.org/diseases/disease-statistics/.
- Moderatetypical onset ~2 yr
Osteochondritis Dissecans
Description and veterinary guidance for Osteochondritis Dissecans land in Phase 4. Prevalence and onset-age figures above are drawn from https://ofa.org/diseases/disease-statistics/.
Shih Tzu
- High prevalencetypical onset ~8 yr
Degenerative Myelopathy
Description and veterinary guidance for Degenerative Myelopathy land in Phase 4. Prevalence and onset-age figures above are drawn from https://ofa.org/diseases/disease-statistics/.
- Moderatetypical onset ~2 yr
Elbow Dysplasia
Description and veterinary guidance for Elbow Dysplasia land in Phase 4. Prevalence and onset-age figures above are drawn from https://ofa.org/diseases/disease-statistics/.
- Moderatetypical onset ~5 yr
Periodontal Disease
Description and veterinary guidance for Periodontal Disease land in Phase 4. Prevalence and onset-age figures above are drawn from https://ofa.org/diseases/disease-statistics/.
Synthesis
Which is right for you?
The Shih Tzu tends to live about 2.2 years longer on average than the Rottweiler (12.8 vs 10.6 years).
Size gap is meaningful: the Rottweiler is giant and the Shih Tzu is small. Expect different considerations for housing, travel, and vet-care costs.
Both breeds have similar energy requirements — roughly 45 minutes of daily activity keeps either satisfied.
Shih Tzus rate higher for household-with-kids compatibility (5/5).
Both carry 1 high-prevalence breed-specific health risks — see the health section above for condition-by-condition detail.
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