Every one to two weeks, and hands often beat a brush
The Devon Rex wears a loose, wavy coat made of all three hair types, but the hairs are short, delicate, and prone to breaking, giving the breed its tousled, pixie look, and one very gentle session every one to two weeks is plenty for it. Daily or firm brushing is the most common grooming mistake with this breed, and it thins the coat it is meant to improve.
When you do brush, use a soft baby brush or a rubber grooming mitt, follow the direction of growth, and let the tool glide rather than pull. A Devon who looks a little rumpled after a proper gentle groom is not unfinished; that soft disarray is the breed's correct, healthy look.
Ears and skin matter more than the coat itself
The grooming priority for a Devon Rex is not really the fur: those very large, wide-set ears collect wax readily and deserve a weekly check and a gentle wipe of the visible outer ear. Skin deserves the same attention: the coat is thin enough that the skin beneath is partly exposed, oils can build up in the folds and around the neck, and many Devons benefit from an occasional gentle bath, which does more for their grooming than extra brushing ever will.
During your fortnightly session, run your hands slowly over the whole body. On a Devon you can feel almost everything through the sparse coat, so this is a real opportunity to notice a new lump, a patch where the coat has thinned in a new place, a sore spot, or early matting in the slightly longer fur some Devons carry on the tail. Check the armpits and belly too, where fine hair can form tiny tangles that should be teased apart with fingers, never ripped with a brush.
A people-loving cat who will make grooming easy if you keep it kind
Devon Rex are intensely social, clownish cats who usually want to be wherever their people are, and most will accept grooming happily if it doubles as attention. Because the breed seeks contact, grooming can become a valued ritual quickly; because the coat breaks easily, the same willing cat can be over-groomed by an affectionate household where several people each give her a thorough brush, none realising the others have done the same.
That is the specific Devon risk: not neglect, but duplicated kindness. One person's weekly session is correct care; three people's weekly sessions is a coat being steadily broken down. Agree as a household who grooms her and how often, and treat the tousled look as the goal rather than a problem to be fixed by one more pass with the brush.
When thin patches or skin changes need a vet
Devon Rex coats naturally vary, and some individuals go through phases where the coat is sparser, including kittens who lose their first coat as the adult waves come in. Against that background, what should prompt a veterinary visit is change with a pattern: symmetrical new bald areas, broken hairs appearing rapidly across the back, skin that becomes red, flaky, or unusually greasy, or scratching and ear-shaking that persist between cleanings. Dark, heavy ear discharge or a sour smell from the ears also needs examination rather than more wiping at home.
Mention the grooming frequency when you go, because a vet assessing a thin Devon coat will want to know how often and how firmly the cat is brushed before investigating other causes. Your honest routine notes can save a round of testing, or confirm that grooming is not the explanation and the search should continue.
A shared record is the practical fix for the duplicated-kindness problem in a sociable breed's home, and KinsLe Care Teams lets one named person own your Devon Rex's fortnightly groom, with the ear check listed beside it, so the coat gets exactly the light care it needs.