Great Dane vs Mastiff

Side-by-side comparison of temperament, health, size, and care needs.

Great Dane

Mastiff

Traits Overview

Great Dane

Mastiff

Energy Level

Great Dane

3/5

Mastiff

2/5

Trainability

Great Dane

3/5

Mastiff

3/5

Good with Kids

Great Dane

5/5

Mastiff

4/5

Good with Pets

Great Dane

4/5

Mastiff

3/5

Grooming Needs

Great Dane

2/5

Mastiff

2/5

Great Dane scores highest in energy level (3/5 vs 2/5).
All breeds share similar trainability (3/5).
Great Dane scores highest in kid-friendliness (5/5 vs 4/5).
Great Dane scores highest in pet-friendliness (4/5 vs 3/5).
All breeds share similar grooming needs (2/5).
Great Dane tends to live longer (7-10 years) compared to Mastiff (6-10 years).
Both breeds are prone to Bloat, Hip dysplasia.

Attribute	Great Dane The gentle giant of dogs. Friendly, patient, and dependable despite towering size.	Mastiff Massive yet gentle and docile. One of the heaviest breeds, known for courage and dignified temperament.
Size	giant	giant
Weight	110-175 lbs	120-230 lbs
Height	28-32 in	27.5+ in
Life Span	7-10 years	6-10 years
Origin	Germany	England
Group	Working	Working
Energy Level
Trainability
Good with Kids
Good with Pets
Grooming Needs
Temperament	FriendlyPatientDependableGentle	CourageousDignifiedGood-NaturedCalm
Common Health Issues	Bloat Hip dysplasia Heart disease Bone cancer	Hip dysplasia Elbow dysplasia Bloat Progressive retinal atrophy
Exercise	30-60 min daily moderate exercise	Moderate daily walks
Grooming	Weekly brushing	Weekly brushing
Diet	Large-breed puppy food, elevated bowls	Large-breed formula, elevated bowls