German Shepherd vs American Mastiff
Compare the German Shepherd to the American Mastiff. Use the tool below to compare temperament, size, personality, maintenance requirements, and everything else between German Shepherds and American Mastiffs.
German Shepherd
American Mastiff
Breed Type
Purebred
Purebred
Allergy Friendly
No
No
Lifespan
10-14 Years
10-12 Years
Height
22-26 Inches
28-36 Inches
Weight
75-95 Pounds
140-200 Pounds
Intelligence
German Shepherd
American Mastiff
Origin Country
Germany
United States
Origin Year
1899 AD
1990 AD
German Shepherd
American Mastiff
Overall Friendliness
Family Friendly
Child Friendly
Pet Friendly
Stranger Friendly
German Shepherd
American Mastiff
German Shepherd
American Mastiff
Apartment
Yes
Yes
Indoor
Yes
No
Small Yard
Yes
Yes
Medium Yard
Yes
Yes
Large Yard
Yes
No
Temperature Tolerance
40-85 °F
40-80 °F
Barks/Howls
German Shepherd
American Mastiff
Energy Level
High
Medium
Exercise Required
High
Medium
Top Running Speed
30 MPH
24 MPH
Strength
High
Very High
German Shepherd
American Mastiff
Coat Maintenance
Medium to High
Low
Shedding
High
Medium
Dander
High
Low
Drool
Medium
Medium
German Shepherd
American Mastiff
Dominant / Alpha
No
No
Family / Pack
Yes
Yes
Independent
No
No
German Shepherd
American Mastiff
Distracted Easy
No
No
Focused & Patient
Yes
Yes
German Shepherd
American Mastiff
Aggression
Burrow / Digging
Chasing
Follow Commands
Fighting
Guarding
Herding
Hunting
Protection
Remove Vermin
Sled Pulling
Watch / Guardian
German Shepherd
American Mastiff
Average Lifespan
10-14 Years
10-12 Years
German Shepherd
American Mastiff
German Shepherd
American Mastiff
Coat Type
Fur
Fur
Coat Layering
Double
Smooth
Coat Texture
Straight
Rough
Straight
Coat Length
Short to Medium
Short
German Shepherd
American Mastiff
