Cat Breed Comparison

Peterbald vs Sphynx: Key Differences

Peterbald and Sphynx are often confused. Compare their size, weight, lifespan, origin, temperament, and health — and learn how to tell them apart at a glance.

Quick Comparison

TraitPeterbaldSphynx
SizeMediumMedium
Weight6–10 lbs (2.7–4.5 kg)6–12 lbs (2.7–5.4 kg)
Lifespan12–15 years8–14 years
OriginRussia (St. Petersburg, 1994)Canada (Toronto, 1966)

Visual Differences

Telling a Peterbald from a Sphynx

Both are hairless breeds with big ears. Sphynx have a rounded wedge head, a barrel-chested body, lemon-shaped eyes, and thick paw pads. Peterbalds have an Oriental wedge head, a svelte tubular body, and five possible coat types instead of one uniform look.

Peterbald Key Markers

  • Five coat types per the TICA standard — bald (completely hairless), chamois (fine suede-like down), flock (velour-like fuzz with no guard hairs), brush (short wiry or wavy hair), and straight (a regular coat); one litter can produce several types
  • Long wedge head with a straight profile, the classic Oriental shape — a long muzzle and a strong chin
  • Very large, wide-set, almond-shaped ears, set to continue the wedge lines

Sphynx Key Markers

  • Hairless body covered in fine peach-fuzz down — skin feels warm and soft like chamois leather or suede
  • Wedge-shaped head with prominent cheekbones and a visible whisker break
  • Oversized, wide-set ears with rounded tips, set high on the head — described as "bat-like" in the CFA standard

Temperament & Personality

Peterbald

  • Affectionate and people-oriented — follows owners, greets at the door, and wants to be part of everything
  • Intelligent and curious — learns tricks, opens doors, and solves puzzle feeders
  • Active and playful — enjoys interactive toys and climbing; stays kittenish into adulthood
  • Dog-like loyalty — forms deep bonds and often walks on a leash
  • Social with strangers, children, and other pets — rarely shy or territorial
  • Heat-seeking — bare skin offers no insulation; Peterbalds want warm spots, sweaters, and laps

Sphynx

  • Intensely people-oriented — follows owners around the house, sleeps under the covers, greets at the door
  • Highly energetic and playful — climbs, jumps, and invents games; needs interactive toys and cat trees
  • Dog-like loyalty — learns tricks, walks on a leash, and comes when called
  • Warmth-seeking — drawn to heat sources, sunny spots, blankets, and human laps
  • Social with strangers, children, and other pets — rarely shy or skittish
  • Vocal but not noisy — communicates with chirps, trills, and meows to express needs and moods

Health Notes

Peterbald

  • Progressive retinal atrophy (PRA) — a genetic eye disease documented in the breed that causes slow vision loss; DNA testing available and recommended before breeding
  • Skin care needs — without hair, skin oils build up into greasy film, acne, and yeast issues; regular gentle bathing is necessary
  • Sunburn and temperature intolerance — bare skin sunburns easily and offers no warmth; an indoor-only lifestyle with pet-safe sunscreen near windows
  • Dental disease — some lines are prone to tooth issues; regular brushing and annual cleanings recommended
  • Generally robust — beyond PRA screening and skincare, no breed-specific diseases are documented

Sphynx

  • Hypertrophic cardiomyopathy (HCM) — Sphynx cats have one of the highest HCM rates among all breeds (estimated 14–40%); regular echocardiogram screening recommended by veterinary cardiologists
  • Congenital myasthenic syndrome (CMS) — a genetic neuromuscular disorder causing generalized muscle weakness, head-bobbing, and easy fatigue in kittens; DNA test available through UC Davis VGL
  • Urticaria pigmentosa — a skin condition causing raised, crusty lesions from mast cell accumulation under the skin; more common in Sphynx than any other breed
  • Juvenile-onset periodontal disease — the lack of fur does not protect the mouth; Sphynx cats frequently develop gingivitis and tooth resorption by early adulthood
  • Skin oil buildup and yeast infections — without fur to absorb oils, the skin requires weekly bathing to prevent greasy buildup, acne, and Malassezia yeast overgrowth
  • Sun sensitivity and temperature intolerance — the absence of fur means Sphynx cats sunburn easily and cannot tolerate cold; strictly indoor lifestyle recommended

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 Peterbald apart from a Sphynx?
Both are hairless breeds with big ears. Sphynx have a rounded wedge head, a barrel-chested body, lemon-shaped eyes, and thick paw pads. Peterbalds have an Oriental wedge head, a svelte tubular body, and five possible coat types instead of one uniform look.
Are Peterbald cats hypoallergenic?
No — despite the lack of fur, Peterbalds are not hypoallergenic. Allergies are triggered by the Fel d 1 protein in skin oils and saliva, and hairless skin still produces both.
Are Sphynx cats really hairless?
Almost — a Sphynx is covered in a fine peach-fuzz down that feels warm and soft like chamois leather. They are not completely bald, and some individuals have a bit more fuzz on the muzzle, tail, or paws.

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