SIHOO M57 vs Okamura Contessa II
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
0.7 in
more seat-height adjustment on Okamura Contessa II than SIHOO M57 (official specs)
Differences at a glance
Sources
- Sihoo M57 Netz Bürostuhl – DE Sihoo Offizieller Shop ↗Checked Oct 9, 2026
- Okamura Contessa II Spec Guide, Global (BIFMA, mm), January 2026 ↗Checked Sep 26, 2026
- SIHOO M57 Ergonomic Mesh Office Chair – Official US Sihoo Store ↗Checked Oct 9, 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 M57Okamura Contessa II
- Price
- $319.99¥243,650 – ¥377,410
- Seat height
- 46–55 cm (≈ 18.1-21.7 in)434–544 mm (17.1–21.4 in)
- Seat depth
- 18.11 in (≈ 46 cm)400–450 mm (15.7–17.7 in)
- Load capacity
- 330 lb (≈ 150 kg)300 lb (136 kg)
- Recline
- Reclines up to 126°Ankle-tilt reclining; recline angle 26°
- Arms
- 3D coordinated armrests (up and down, left and right, forward and backward)4D 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 adjusts vertically up to 3.9 inches and rotates 45 degreesOptions: large fixed headrest or small adjustable headrest (up/down, front/back, swivel)
- Lumbar support
- Dual-adjustable lumbar support (vertical and horizontal)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?
The SIHOO M57, rated for 330 lb versus 300 lb for the Okamura Contessa II.
Which has a headrest?
Both: the SIHOO M57 as standard and the Okamura Contessa II as an option.
Swap in a similar chair
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Compare Okamura Contessa II with
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- SIHOO M57 vs SIHOO M18 Arms: 3D coordinated armrests on SIHOO M57; Adjustable armrests on SIHOO M18.
- SIHOO M57 vs SIHOO M59AS Arms: 3D coordinated armrests on SIHOO M57; 3D coordinated flip-up armrests on SIHOO M59AS.
- 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.




