Cat Breed Comparison
American Shorthair vs Bombay: Key Differences
American Shorthair and Bombay are often confused. Compare their size, weight, lifespan, origin, temperament, and health — and learn how to tell them apart at a glance.
Quick Comparison
| Trait | American Shorthair | Bombay |
|---|---|---|
| Size | Medium to Large | Medium |
| Weight | 8–15 lbs (3.6–6.8 kg) | 6–10 lbs (2.7–4.5 kg) |
| Lifespan | 12–17 years | 12–16 years |
| Origin | United States | United States (Kentucky, 1950s) |
Visual Differences
Telling a American Shorthair from a Bombay
An all-black American Shorthair can look similar to a Bombay but has a more rectangular, working-cat body, a longer muzzle with visible whisker pads, a harder coat texture that lies differently, and a more independent, less demanding temperament. Bombays have a compact rounded body, a flat short muzzle, a satin-gloss coat, and a personality that demands human attention.
American Shorthair Key Markers
- Dense, short coat that lies flat against the body — each hair tapers to a fine point, giving the coat a hard protective texture developed for outdoor working life; the CFA calls it a "layer-like" coat that repels light moisture and dirt
- Round, full face with a short muzzle, well-developed whisker pads, and a gentle curving profile with a visible stop — the head is large and broad, wider than it is long, with no flat planes
- Large, round wide-set eyes in copper, gold, green, hazel, or blue-white odd eyes in whites — brows are prominent, giving the face an open, friendly expression described as "alert and smiling" in the CFA standard
Bombay Key Markers
- Solid black coat from nose to tail-tip — every single hair must be black to the root, with no white hairs, no darkening along the spine, and no fading or rusting to brown; the CFA standard disqualifies any white spotting, locket, or ticking; the coat is short, fine, and satin-lay-flat, taking on a high-gloss lacquered sheen that the breed standard calls "a polished patent-leather gleam"
- Large, round copper to deep gold eyes set wide apart — the warmer and more brilliant the copper, the better; the contrast between the glowing copper eyes and the jet-black coat is the breed’s hallmark aesthetic; kittens are born with blue eyes that transition through hazel to their final copper shade by 6-8 months of age
- Rounded, broad head with a short, flat muzzle and full cheeks — inherited from the Burmese parent but the black pigment makes the contours less visible than on a brown Burmese; the head should have no flat planes, corners, or angular features
Temperament & Personality
American Shorthair
- Even-tempered and easygoing — adapts well to changes in routine, travel, and new household members
- Independent but affectionate — enjoys lap time on their own terms and follows owners quietly, but does not demand constant attention
- Excellent with children and other pets — the breed’s working-cat heritage developed a calm, tolerant temperament that rarely startles or scratches
- Moderate activity level — enjoys play sessions but settles easily into lounging; not as high-energy as Abyssinians or Bengals
- Quiet communicator — uses soft meows and trills, rarely loud or demanding
- Good mouser — retains strong hunting instincts from its working breed origin
Bombay
- Extremely people-oriented — follows owners from room to room, wants to be held, and sleeps on or next to their person every night; Bombays have been described as "velcro cats" for how closely they attach themselves to their chosen humans
- Playful and mischievous — retains kitten energy into adulthood; loves fetch, interactive toys, cat trees, and puzzle feeders; invents its own games when toys are not available
- Intelligent and trainable — learns to walk on a leash, responds to its name, opens cabinets, and solves food puzzles; needs mental stimulation or it finds its own entertainment
- Social with children, strangers, and other pets — Bombays are confident and outgoing, rarely shy or skittish; they often become the center of attention at social gatherings
- Moderately vocal — has a distinctive soft, sweet voice that the breed community describes as "mini-roar"; communicates needs clearly but without the loud insistence of a Siamese
- Needs company — does not tolerate being left alone for long hours; does best in households where someone is home during the day or with another cat for company
Health Notes
American Shorthair
- Hypertrophic cardiomyopathy (HCM) — the most common heart disease in American Shorthairs; regular cardiac screening recommended
- Obesity — the breed’s moderate activity level and adaptable nature mean weight management is a priority throughout life
- Hip dysplasia — seen more often in the larger-boned lines; maintaining lean body condition reduces symptoms
- Dental disease — compact muzzle structure contributes to tooth crowding and gingivitis; regular dental care recommended
- Feline lower urinary tract disease (FLUTD) — some lines show predisposition; high-moisture diet helpful as a preventive measure
Bombay
- Hypertrophic cardiomyopathy (HCM) — inherited from Burmese ancestry; the breed shares the same genetic risk factors as the Burmese; regular echocardiogram screening recommended for breeding cats; symptoms include lethargy, difficulty breathing, and sudden collapse
- Craniofacial defect — a fatal congenital malformation linked to the brachycephalic ALX1 gene mutation carried in American Burmese lines; homozygous affected kittens present with severe skull and facial deformities and must be euthanized; responsible breeders DNA-test breeding cats to avoid pairing carriers
- Hypokalaemia (Burmese hypokalemia) — a genetic condition inherited from Burmese ancestry causing episodic muscle weakness, head-tilting, and transient paresis due to low blood potassium; diagnosed through bloodwork and managed with oral potassium supplementation; DNA testing available for at-risk lines
- Dental disease — the compact muzzle structure contributes to tooth crowding and a predisposition to early gingivitis; the breed needs regular dental care starting from young adulthood; annual professional cleanings recommended
- Obesity — the compact, muscular body type combined with a love of food makes weight management an ongoing priority; Bombays are prone to packing on weight that strains their joints and shortens their lifespan; measured portions and scheduled feeding are better than free-feeding
This information is for educational purposes only. Always consult a veterinarian for health advice specific to your cat.
Frequently Asked Questions
How can I tell a American Shorthair apart from a Bombay?
An all-black American Shorthair can look similar to a Bombay but has a more rectangular, working-cat body, a longer muzzle with visible whisker pads, a harder coat texture that lies differently, and a more independent, less demanding temperament. Bombays have a compact rounded body, a flat short muzzle, a satin-gloss coat, and a personality that demands human attention.
Are American Shorthairs hypoallergenic?
No — American Shorthairs are not a hypoallergenic breed. They have a dense coat that sheds, and they produce normal levels of the Fel d 1 protein that triggers allergies. If allergies are a concern, spend time with the individual cat first, since reactions vary from person to person.
Are Bombay cats like panthers?
Yes in looks, not in temperament — the Bombay was bred to resemble a miniature black panther with its solid black coat and glowing copper eyes. In personality it is a gentle, affectionate companion that loves attention, play, and being held.
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Breed Profiles & More Comparisons
American Shorthair
A sturdy, even-tempered working cat breed descended from European cats that crossed the Atlantic with early settlers. Known for a dense protective coat, a round full face, and a quiet adaptable personality — the breed standard prizes longevity and robust health above all.
Bombay
A Burmese in black patent leather — the Bombay was bred to look like a miniature black panther. Solid black from nose to tail-tip, with striking copper-gold eyes and a surprisingly heavy, muscular body packed into a medium frame. Affectionate, playful, and people-oriented, Bombays are attention seekers who form deep bonds with their humans.