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 Oriental Shorthair (2.5–5 kg, 12–15 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 Oriental Shorthair and Siamese — both need similar daily exercise.
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.
 Oriental Shorthair |
 Siamese |
|
|---|---|---|
| Group | Short Hair | Short Hair |
| Origin | United Kingdom (1950s) | Thailand (Siam) |
| Weight | 2.5–5 kg | 2.5–5 kg |
| Height | 20–25 cm | 20–25 cm |
| Lifespan | 12–15 years | 12–15 years |
| Energy level | ||
| Trainability | ||
| Grooming needs | ||
| Good with kids | ||
| Good with other pets | ||
| Hypoallergenic | ||
| Watchdog instinct | ||
| Novice-owner OK |
Oriental ShorthairVocal, social, intelligent, demanding. Orientals form deep bonds with their humans and need constant company.
Highly active. Need interactive toys, vertical space, and ideally another cat for company.
Short fine coat — weekly brush.
Same as Siamese: amyloidosis, asthma, dental disease, separation anxiety, glaucoma. Generally healthy.
Full Oriental Shorthair 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 →Owners who are home a lot, multi-cat households, families with older children.
Owners who are home a lot, families with older children, multi-cat households.
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