Side-by-side comparison of two popular breeds — temperament, exercise, grooming, lifespan and common health issues. Use it to decide which breed fits your home.
The Devon Rex (2.5–4.5 kg, 9–15 years) and the Siamese (2.5–5 kg, 12–15 years) sit in different — or sometimes overlapping — corners of dog ownership. Here's how they really compare for an everyday Irish or UK family.
Energy levels are well-matched between the Devon Rex and Siamese — both need similar daily exercise.
Both have manageable grooming routines — the Devon Rex demands slightly more, but neither needs daily fuss.
For allergy sufferers, the Devon Rex is the lower-shed, more hypoallergenic option.
Insurance premiums for breeds with brachycephalic, joint or cancer predispositions run 20–40% above average — check before you commit. We have a free quote calculator here.
 Devon Rex |
 Siamese |
|
|---|---|---|
| Group | Short Hair | Short Hair |
| Origin | England (1959) | Thailand (Siam) |
| Weight | 2.5–4.5 kg | 2.5–5 kg |
| Height | 23–30 cm | 20–25 cm |
| Lifespan | 9–15 years | 12–15 years |
| Energy level | ||
| Trainability | ||
| Grooming needs | ||
| Good with kids | ||
| Good with other pets | ||
| Hypoallergenic | ||
| Watchdog instinct | ||
| Novice-owner OK |
Devon RexPlayful, mischievous, affectionate, dog-like. Devons love being on shoulders, in laps and involved in everything.
Highly active. Cat trees, food puzzles, interactive play.
Wavy coat — minimal brushing (it's fragile). Bathe occasionally if greasy.
Hypertrophic cardiomyopathy. Hereditary myopathy. Hip dysplasia. Patellar luxation. Skin issues.
Full Devon Rex profile →
SiameseVocal, social, intelligent, demanding. Siamese cats want to be involved in everything you do and will tell you about it loudly. They bond closely with one or two people and don't do well alone all day.
Highly active and play-driven. Need interactive toys, vertical space, food puzzles. Many do well with a feline companion to play with.
Short, fine coat. Weekly brushing is plenty.
Generally healthy. Watch for: amyloidosis, asthma, dental disease, glaucoma, eyes (some lines have crossed eyes which is harmless), separation anxiety.
Full Siamese profile →Families with children, multi-pet homes, allergy-sensitive owners (test first).
Owners who are home a lot, families with older children, multi-cat households.
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