SIHOO M56C vs Okamura Contessa II
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
Differences at a glance
Sources
- Sihoo M56C Ergonomic Office Chair - Full Back Support with Cotton Seat Cushion – Official US Sihoo Store ↗Checked Oct 13, 2026
- Okamura Contessa II Spec Guide, Global (BIFMA, mm), January 2026 ↗Checked Sep 26, 2026
- Contessa II | Okamura global (okamura.com, Asia Pacific English) ↗Checked Sep 26, 2026
- Okamura Japan product page: Contessa Seconda (Japanese) ↗Checked Sep 26, 2026
- Okamura Global General Warranty Statement (excludes Japan) ↗Checked Sep 26, 2026
- OKAMURA Lifestyle Store (Japan) (price) ↗Checked Oct 11, 2026
SIHOO M56COkamura Contessa II
- Price
- $184.99¥243,650 – ¥377,410
- Seat depth
- 17.1 in (≈ 43.4 cm)400–450 mm (15.7–17.7 in)
- Load capacity
- 300 lb (≈ 136 kg)300 lb (136 kg)
- Recline
- Maximum tilt angle of 125° (reclining lock with 1 position)Ankle-tilt reclining; recline angle 26°
- Arms
- Armrests adjustable up and down4D arm or fixed arm; armrest height from the floor 604–814 mm (4D arm), 639–749 mm (fixed arm) (23.8–32 in; 25.2–29.5 in)
- Headrest
- Headrest moves up and down and tiltsOptions: large fixed headrest or small adjustable headrest (up/down, front/back, swivel)
- Lumbar support
- Ultra-wide dynamic lumbar support: a flexible elastic plate that moves with the backrest (no manual adjustment listed)Optional lumbar support with 60 mm height adjustment (can be retrofitted) (2.4 in)
- Warranty
- 3 years10 years: structural components, including mechanisms and adjustable arms; 5 years: casters, gas cylinder, adjustment levers; 2 years: coating finish, mesh and fabric, cushions, arm pads
Questions
Which has a higher weight capacity?
Neither. Both are rated for 300 lb in their official specifications.
Which has a headrest?
Both: the SIHOO M56C as standard and the Okamura Contessa II as an option.
Swap in a similar chair
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More comparisons
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- Okamura Contessa II vs Steelcase Gesture Arms: 4D arm or fixed arm on Okamura Contessa II; Width 10.25–22.5 in between arms on Steelcase Gesture.
- Okamura Contessa II vs Herman Miller Aeron Arms: 4D arm or fixed arm on Okamura Contessa II; Arm height 7.5–11.5 in on Herman Miller Aeron.
- Okamura Contessa II vs Steelcase Leap V2 Load capacity: 300 lb on Okamura Contessa II; 400 lb on Steelcase Leap V2.
- Okamura Contessa II vs Herman Miller Cosm High Back Arms: 4D arm or fixed arm on Okamura Contessa II; Leaf Arms on Herman Miller Cosm High Back.




