Rex cat Small size 2.5-4.5 kg

Cornish Rex

A playful, warm-seeking cat with a soft wavy coat and low shedding - very people-focused and not fond of being left alone.

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Find out how this breed matches your household

Quick overview

Small
Size
2.5-4.5 kg, 20-25 cm at the shoulder
High
Activity
Active; needs daily play and climbing
Low
Alone-time tolerance
People-oriented; dislikes long days alone
Easy
Handling
Sociable and easy to handle
Low
Coat care
Fine wavy coat; gentle low-shedding care
Good
Fit with kids
Fine with considerate kids
Good
Other pets
Usually fine with cats and calm dogs
Moderate
Health burden
Obesity, Hypertrophic cardiomyopathy (HCM)

The Cornish Rex typically weighs 2.5-4.5 kg, stands 20-25 cm, and lives 12-16 years.

Consider this breed if…

you want a playful, clownish cat that stays kitten-like into old age,
someone is usually home - this cat wants company and warmth,
you like the idea of minimal shedding and a silky, wavy coat,
you enjoy a cat that fetches, rides shoulders and joins everything.

Do not consider this breed if…

the home is empty ten hours a day - a lone Cornish Rex gets miserable and loud,
you keep a cold house; the thin coat gives little insulation,
you expect "hypoallergenic" - it sheds less, but still produces allergens,
you want a dignified, decorative cat; this one lives on your keyboard.

A typical day with a Cornish Rex

  1. 7:00 · Morning
    Greets you loudly, supervises breakfast
  2. 9:00 · Midmorning
    Races laps, then finds the warmest spot
  3. 13:00 · Noon
    Naps on a radiator, laptop or sunny sill
  4. 17:00 · Afternoon
    Fetch, wand games, acrobatics on shelves
  5. 19:30 · Evening
    Glued to a warm lap or shoulder
  6. 22:00 · Night
    Under the covers, pressed against you

Temperament and training

Playfulness Very high
Sociability Very high
Energy High
Vocality Moderate
Independence Low
Tolerance of handling High
Common owner mistakes
Overbathing or rough brushing - the fine wavy coat is fragile and needs gentle care · Free-feeding a food-obsessed little acrobat until it is a round one · Assuming low shedding means allergy-safe and skipping a pre-purchase allergy test visit

Family and environment

Kids Good
Playful match for considerate kids; teach gentle hands.
Other cats Good
Welcomes company; a second cat eases workday absences.
Dogs Good
Confident with calm, cat-friendly dogs.
Apartment Ideal
Indoor life suits it; add climbing and warm spots.
Seniors Conditional
Affectionate but busy; wants active play daily.
First cat Great fit
Easy to handle and eager to interact.
Busy household Conditional
Needs company; long empty days call for a companion.
Health data provided by RealVetCost
Overall health burden Moderate

Detailed health data - inheritance, prevalence, course, and typical treatment costs - lives in a separate expert database. This is general guidance, not veterinary advice - confirm any decision with your vet.

View the full health profile
Top health concerns
Obesity Indoor cats gain weight easily; watch portions
Hypertrophic cardiomyopathy (HCM) Most common feline heart disease; echo screening helps
Dental Disease Plaque and gum disease; routine dental care helps
Allergies and skin issues Skin sensitivity; fine or bare coats need care

Similar breeds - by reason

Not visually similar - similar in what they mean for you.

The other rex - similar coat, even more pixie
Devon Rex
A mischievous, people-obsessed pixie of a cat with a soft wavy coat - endlessly playful but really dislikes being left alone.
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Maximum warmth-seeking people-cat, no coat at all
Sphynx
A warm, attention-loving hairless cat that craves constant company - the bare skin needs regular bathing and care.
View profile →
Slender, vocal, equally people-dependent
Oriental Shorthair
An active, people-focused cat that wants interaction and does best in a busy home - not one to leave alone all day.
View profile →

Frequently asked questions

How much does a Cornish Rex cost in the US?
Pet-quality kittens from reputable breeders commonly run $800-$1,800; show lines cost more, and you may need to travel since breeders are scattered. Over a 12-16 year life, food, litter and routine vet care typically add $12,000-$20,000 or more, and a chronic condition like HCM can add thousands on top.
Is the Cornish Rex hypoallergenic?
No cat is. The Cornish Rex sheds very little because it has only the fine, wavy undercoat layer, which many allergy sufferers find easier to live with - but it still produces the Fel d 1 allergen in saliva and skin. Spend time with an adult of the breed before buying rather than trusting the label.
Does a Cornish Rex get cold?
It runs warm to the touch but loses heat fast through that thin coat, which is why the breed is famous for radiator-hugging, blanket-burrowing and lap-seeking. Keep the home reasonably warm, provide cozy beds, and treat it as an indoor-only cat - it is poorly equipped for outdoor weather.
Can a Cornish Rex be left alone during workdays?
A standard workday is manageable if there is play before and after, but this is a strongly people-oriented breed that does badly in homes empty from morning to night. A second playful cat is the practical fix; a bored, lonely Rex becomes vocal and mischievous.