Chihuahua vs American Mastiff
Compare the Chihuahua to the American Mastiff. Use the tool below to compare temperament, size, personality, maintenance requirements, and everything else between Chihuahuas and American Mastiffs.
Chihuahua
American Mastiff
Breed Type
Purebred
Purebred
Allergy Friendly
No
No
Lifespan
15-20 Years
10-12 Years
Height
6-9 Inches
28-36 Inches
Weight
3-6 Pounds
140-200 Pounds
Intelligence
Chihuahua
American Mastiff
Origin Country
Mexico
United States
Origin Year
1850 AD
1990 AD
Chihuahua
American Mastiff
Overall Friendliness
Family Friendly
Child Friendly
Pet Friendly
Stranger Friendly
Chihuahua
American Mastiff
Chihuahua
American Mastiff
Apartment
Yes
Yes
Indoor
Yes
No
Small Yard
No
Yes
Medium Yard
No
Yes
Large Yard
No
No
Temperature Tolerance
50-80 °F
40-80 °F
Barks/Howls
Chihuahua
American Mastiff
Energy Level
High
Medium
Exercise Required
Medium
Medium
Top Running Speed
18 MPH
24 MPH
Strength
Low
Very High
Chihuahua
American Mastiff
Coat Maintenance
Low
Low
Shedding
Medium
Medium
Dander
Low
Low
Drool
None
Medium
Chihuahua
American Mastiff
Dominant / Alpha
No
No
Family / Pack
Yes
Yes
Independent
No
No
Chihuahua
American Mastiff
Distracted Easy
No
No
Focused & Patient
No
Yes
Chihuahua
American Mastiff
Aggression
Burrow / Digging
Chasing
Follow Commands
Fighting
Guarding
Herding
Hunting
Protection
Remove Vermin
Sled Pulling
Watch / Guardian
Chihuahua
American Mastiff
Average Lifespan
15-20 Years
10-12 Years
Chihuahua
American Mastiff
Chihuahua
American Mastiff
Coat Type
Fur
Fur
Coat Layering
Double
Single
Smooth
Coat Texture
Silky
Straight
Rough
Straight
Coat Length
Short to Long
Short
Chihuahua
American Mastiff
