With their distinctive wavy coats and playful personalities, the Devon Rex and Cornish Rex are two of the most captivating cat breeds. While they share a similar appearance, they possess unique genetic origins, temperaments, and care requirements. This comprehensive guide provides a detailed comparison to help you decide which of these affectionate, low-shedding companions is the right fit for your home.
Breed Overview
Devon Rex Cats
Origin and History The Devon Rex breed originated in 1960 in Devon, England, from a stray cat's litter that included a curly-coated kitten named Kirlee. Genetic testing later confirmed that the mutation causing Kirlee's coat was different and recessive compared to the Cornish Rex, establishing it as a distinct breed. The breed gained formal recognition in the UK during the 1960s and in the United States in the 1970s.
Physical Characteristics
- Weight: 6–9 pounds (2.7–4 kg)
- Length: 12–16 inches (30–40 cm)
- Coat: Short, soft, and curly with a rippled, windswept appearance.
- Colors & Patterns: All colors and patterns are accepted.
- Eyes: Large, oval, and wide-set; eye color can vary.
- Distinctive Features: A pixie-like face with very large, low-set ears.
- Lifespan: 10–15 years
- Body Type: Medium-sized, slender, and athletic.
Cornish Rex Cats
Origin and History The Cornish Rex story began in 1950 in Cornwall, England, when a barn cat named Serena gave birth to a curly-coated male named Kallibunker. Recognizing its uniqueness, the owner worked with geneticists to develop the breed, which was named for its origin (Cornish) and coat type (Rex). It achieved championship status in both the UK and the US during the 1960s.
Physical Characteristics
- Weight: 6–10 pounds (2.7–4.5 kg)
- Length: 12–16 inches (30–40 cm)
- Coat: Short, incredibly soft, with tight, uniform marcel waves.
- Colors & Patterns: All colors and patterns are accepted.
- Eyes: Medium to large and oval; color corresponds with the coat.
- Distinctive Features: A whippet- or greyhound-like body with a distinctly arched back.
- Lifespan: 12–16 years
- Body Type: Small to medium, slender, and elegant with fine bones.
Understanding the Rex Mutations: A Genetic Breakdown
Genetic Differences
Cornish Rex Gene (Re)
- Type: Dominant gene.
- Effect: Affects only the guard hairs, leaving a coat composed solely of the soft undercoat.
- Result: Produces tight, consistent marcel waves.
Devon Rex Gene (re)
- Type: Recessive gene.
- Effect: Affects all three hair types (guard, awn, and down), modifying and shortening them.
- Result: Creates looser, more rippled waves.
Key Takeaway: These mutations occur on different chromosomes. Breeding a Devon Rex with a Cornish Rex produces straight-coated kittens, proving the breeds are genetically distinct.
Temperament and Personality Face-Off
Devon Rex Personality
The Impish Companion: Often described as elfin or pixie-like, Devons are mischievous and curious. They maintain a kitten-like playfulness throughout their lives.
The Ultimate People-Cat: They form exceptionally strong bonds with their families. It's common for them to ride on shoulders and follow their owners from room to room.
Intelligent & Social: Highly trainable and smart, they enjoy learning tricks and playing fetch. They are typically very outgoing with guests and other pets.
Cornish Rex Personality
The Athletic Acrobat: This breed is known for its high energy and love of heights. They are often found perched on top of doors and tall cat trees.
The Affectionate Heat-Seeker: Profoundly devoted, Cornish Rex cats crave human companionship. Their thin coat drives them to seek warmth, often burrowing under blankets.
Confident & Inquisitive: They are intelligent and generally confident with new people, though they love being the center of attention.
Coat, Grooming, and Care
Devon Rex Coat & Care
- Texture: Loose, rippled waves; feels like crushed velvet or lamb's wool.
- Grooming: Minimal. Wipe with a soft cloth. Occasional bathing helps manage skin oils.
- Special Note: Their thin coat offers little insulation. They may need sweaters in cold climates.
Cornish Rex Coat & Care
- Texture: Tight, uniform marcel waves; feels like silk or rabbit fur.
- Grooming: Minimal. Gentle brushing with a soft brush.
- Special Note: Lacks guard hairs entirely, making them highly sensitive to temperature. Indoor-only living is non-negotiable.
Health and Lifespan
Devon Rex Health
- Lifespan: 10–15 years.
- Primary Concern: Devon Rex Myopathy, a genetic muscle disorder. Reputable breeders must perform DNA testing.
- Other Considerations: Potential for hypertrophic cardiomyopathy (HCM) and patellar luxation.
Cornish Rex Health
- Lifespan: 12–16 years.
- Overall Health: Generally robust with fewer breed-specific issues.
- Considerations: Screen for HCM and provide diligent dental care.
Lifestyle and Costs
Living Environment
Both breeds require an indoor-only lifestyle due to temperature sensitivity. They thrive in warm homes with plenty of vertical space like cat trees.
Exercise Needs
- Devon Rex: High energy. Needs interactive play sessions daily.
- Cornish Rex: Very high energy. Requires multiple vigorous play sessions.
Cost Comparison
- Initial Kitten Cost: $800–$2,500 from a reputable breeder.
- Annual Ongoing Costs: $1,350–$2,750 for quality food, vet care, and supplies.
Which Breed Is Right For You?
Choose a Devon Rex If:
- You want a mischievous, pixie-like companion with intense devotion.
- You enjoy a cat that loves to ride on your shoulder.
- You prefer a social cat that gets along with everyone.
Choose a Cornish Rex If:
- You want an elegant, athletic acrobat that loves high places.
- You love a "heat-seeking" cat that will burrow under blankets with you.
- You want a breed with minimal grooming and robust health.
Both the Devon Rex and Cornish Rex offer unparalleled companionship. Your choice ultimately hinges on personal preference: the impish charm of the Devon versus the elegant exuberance of the Cornish. Focus on finding an ethical breeder who prioritizes genetic health testing. Regardless of your choice, these curly-coated wonders will bring joy and warmth to your home.