American Mastiff vs English Shepherd

Compare the American Mastiff to the English Shepherd. Use the tool below to compare temperament, size, personality, maintenance requirements, and everything else between American Mastiffs and English Shepherds.

American Mastiff vs English Shepherd
American Mastiff
English Shepherd
American Mastiff
English Shepherd
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General Details
American Mastiff
English Shepherd
Breed Type
Purebred
Purebred
Allergy Friendly
No
No
Lifespan
10-12 Years
14-16 Years
Height
28-36 Inches
18-23 Inches
Weight
140-200 Pounds
40-60 Pounds
Intelligence
Above Average
Above Average
History
American Mastiff
English Shepherd
Origin Country
United States
United Kingdom
Origin Year
1990 AD
1800 AD
Temperament
American Mastiff
English Shepherd
Overall Friendliness
Above Average
Above Average
Family Friendly
Above Average
Above Average
Child Friendly
Above Average
Above Average
Pet Friendly
Below Average
Average
Stranger Friendly
Below Average
Above Average
Personality
American Mastiff
English Shepherd
Traits
Affectionate
Loving
Needy
Snuggle
Willing to Please
Loving
Stubborn
Living Environment
American Mastiff
English Shepherd
Apartment
Yes
No
Indoor
No
No
Small Yard
Yes
No
Medium Yard
Yes
Yes
Large Yard
No
Yes
Temperature Tolerance
40-80 °F
40-70 °F
Barks/Howls
None
Average
Exercise Needs
American Mastiff
English Shepherd
Energy Level
Medium
High
Exercise Required
Medium
High
Top Running Speed
24 MPH
22 MPH
Strength
Very High
Medium
Grooming Needs
American Mastiff
English Shepherd
Coat Maintenance
Low
Medium
Shedding
Medium
High
Dander
Low
Medium
Drool
Medium
Low
Instincts and Behavior
Breed Mentality
American Mastiff
English Shepherd
Dominant / Alpha
No
Yes
Family / Pack
Yes
No
Independent
No
Yes
Breed Focus
American Mastiff
English Shepherd
Distracted Easy
No
No
Focused & Patient
Yes
No
Breed Instincts
American Mastiff
English Shepherd
Aggression
Below Average
Below Average
Burrow / Digging
Below Average
Average
Chasing
Below Average
Average
Follow Commands
Below Average
Average
Fighting
Below Average
Below Average
Guarding
Above Average
Below Average
Herding
Below Average
Above Average
Hunting
Below Average
Above Average
Protection
Above Average
Average
Remove Vermin
Below Average
Above Average
Sled Pulling
Below Average
Average
Watch / Guardian
Above Average
Above Average
Health Comparison
Lifespan
American Mastiff
English Shepherd
Average Lifespan
10-12 Years
14-16 Years
Health Concerns
American Mastiff
English Shepherd
Common Health Issues
Bloat
Cancer
Entropion
Cataracts
Hip dysplasia
Progressive retinal atrophy
Hypothyroidism
Elbow dysplasia
Exposure keratopathy
Ectropion
Retinal dysplasia
Osteoarthritis
Heart problems
Arthritis
Skin irritation
Skin infections
Snoring
Drooling
Cystine urolithiasis
Hip dysplasia
Progressive retinal atrophy
Collie eye anomaly
Drug sensitivity
Appearance Comparison
Coat
American Mastiff
English Shepherd
Coat Type
Fur
Fur or Hair
Coat Layering
Smooth
Double
Smooth
Coat Texture
Rough
Straight
Silky
Straight
Wavy
Coat Length
Short
Medium to Long
Coat Coloring
American Mastiff
English Shepherd
Breed Colors
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