Boston Terrier vs King Charles Spaniel

Compare the Boston Terrier to the King Charles Spaniel. Use the tool below to compare temperament, size, personality, maintenance requirements, and everything else between Boston Terriers and King Charles Spaniels.

Boston Terrier vs King Charles Spaniel
Boston Terrier
King Charles Spaniel
Boston Terrier
King Charles Spaniel
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General Details
Boston Terrier
King Charles Spaniel
Breed Type
Purebred
Purebred
Allergy Friendly
No
No
Lifespan
13-15 Years
10-12 Years
Height
13-15 Inches
10-11 Inches
Weight
10-25 Pounds
8-14 Pounds
Intelligence
Average
Average
History
Boston Terrier
King Charles Spaniel
Origin Country
United States
United Kingdom
Origin Year
1870 AD
1800 AD
Temperament
Boston Terrier
King Charles Spaniel
Overall Friendliness
Above Average
Above Average
Family Friendly
Above Average
Above Average
Child Friendly
Above Average
Below Average
Pet Friendly
Above Average
Above Average
Stranger Friendly
Average
Above Average
Personality
Boston Terrier
King Charles Spaniel
Traits
Affectionate
Jealous
Loving
Needy
Separation Anxiety
Stubborn
Willing to Please
Affectionate
Loving
Needy
Separation Anxiety
Stubborn
Living Environment
Boston Terrier
King Charles Spaniel
Apartment
Yes
Yes
Indoor
Yes
Yes
Small Yard
No
No
Medium Yard
No
No
Large Yard
No
No
Temperature Tolerance
55-80 °F
55-75 °F
Barks/Howls
None
Average
Exercise Needs
Boston Terrier
King Charles Spaniel
Energy Level
High
Low
Exercise Required
Medium
Low
Top Running Speed
15 MPH
14 MPH
Strength
Medium
Low
Grooming Needs
Boston Terrier
King Charles Spaniel
Coat Maintenance
Low
Medium
Shedding
Low
Medium
Dander
Low
Medium
Drool
Low
None
Instincts and Behavior
Breed Mentality
Boston Terrier
King Charles Spaniel
Dominant / Alpha
No
No
Family / Pack
Yes
Yes
Independent
No
No
Breed Focus
Boston Terrier
King Charles Spaniel
Distracted Easy
No
No
Focused & Patient
No
No
Breed Instincts
Boston Terrier
King Charles Spaniel
Aggression
None
Below Average
Burrow / Digging
None
Below Average
Chasing
Below Average
Below Average
Follow Commands
Below Average
Below Average
Fighting
Below Average
Below Average
Guarding
Average
Below Average
Herding
Below Average
Below Average
Hunting
Below Average
Below Average
Protection
Below Average
Below Average
Remove Vermin
Average
Below Average
Sled Pulling
Below Average
None
Watch / Guardian
Average
Below Average
Health Comparison
Lifespan
Boston Terrier
King Charles Spaniel
Average Lifespan
13-15 Years
10-12 Years
Health Concerns
Boston Terrier
King Charles Spaniel
Common Health Issues
Cataracts
Patellar luxation
Heart murmurs
Allergies
Reverse sneezing
Cherry eye
Deafness
Brain tumors
Megaesophagus
Mitral valve disease
Patellar luxation
Legg-Calve-Perthes disease
Patent ductus arteriosus
Open fontanel
Umbilical hernias
Cryptorchidism
Hydrocephalus
Cleft palate
Retinal dysplasia
Seborrheic dermatitis
Fused toes
Appearance Comparison
Coat
Boston Terrier
King Charles Spaniel
Coat Type
Fur
Fur
Coat Layering
Single
Single
Coat Texture
Straight
Silky
Coat Length
Short
Medium
Coat Coloring
Boston Terrier
King Charles Spaniel
Breed Colors
Black and White
Black and White
Brindle and White
Brindle and White
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