Sphynx vs Russian Blue

Same fields, side by side: weight, lifespan, grooming load, energy and known health risks.

SphynxRussian Blue
Weight3.0–5.5 kg (6.5–12 lb)3.0–5.0 kg (6.5–11 lb)
LengthBody 35–45 cm (14–18 in), tail 30–35 cmBody 38–46 cm (15–18 in), tail 28–33 cm
Lifespan9–15 years15–20 years
Typical price$1,200–$3,500$800–$2,500
Grooming●●●●○●●○○○
Shedding●○○○○●●○○○
Energy●●●●○●●●○○
Affection●●●●●●●●●○
Vocalness●●●●○●●○○○
Independence●○○○○●●●●○

What the numbers say

  • Grooming load: Russian Blue is lower than Sphynx.
  • Shedding: Sphynx is lower than Russian Blue.
  • Energy: Sphynx is higher than Russian Blue.
  • Vocalness: Russian Blue is lower than Sphynx.
  • Affection: Sphynx is higher than Russian Blue.

Size, longevity and the practical difference

Sphynx weighs 3.0–5.5 kg (6.5–12 lb) and stands out at Body 35–45 cm (14–18 in), tail 30–35 cm; Russian Blue weighs 3.0–5.0 kg (6.5–11 lb), Body 38–46 cm (15–18 in), tail 28–33 cm. Lifespan is 9–15 years against 15–20 years. In practice the heavier cat costs more at every vet visit (drugs and anaesthesia are dosed by weight), needs sturdier cat trees, and carries a higher baseline risk of joint load. The lighter cat is easier to keep slim and cheaper to medicate, but has less margin if it loses weight during illness.

Time you actually spend per week

Coat and skin work is the recurring cost. Sphynx sits at grooming difficulty 4/5 and almost no loose hair, which is roughly <strong>75 to 120 minutes of combing a week</strong>, more in spring and autumn. Russian Blue sits at 2/5 and light shedding: about <strong>25 to 40 minutes a week</strong>. Play is the second cost: Sphynx has high drive, needs structured play every day; Russian Blue has moderate drive, two proper sessions a day. Budget 10 to 15 minutes twice a day for either, and a food puzzle for the lower-energy one so it does not simply sleep through the day.

Health screening before and after you buy

Sphynx's headline risk is Hypertrophic cardiomyopathy (HCM). Russian Blue's is Progressive retinal atrophy. Ask for the parents' DNA test results and the most recent cardiac ultrasound report; both breeds' calendars on this site list which tests are worth paying for and how often. Weight is the lever you control: a cat one kilogram over its ideal weight has measurably more arthritis and diabetes risk, so weigh monthly and act at 10% above target.

Which one fits your household

Energy 4/5 and vocalness 4/5 for Sphynx against 3/5 and 2/5 for Russian Blue; affection 5/5 against 4/5. Both lean towards people. If nobody is home for ten hours a day, neither is a good fit on its own unless you take two cats or arrange a midday visit. A first-time owner or a home with young children should pick the calmer, more tolerant of the two; an experienced owner who wants interaction should pick the busier one.

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