Okamura Contessa II vs SIHOO M57
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
- Okamura Contessa II Spec Guide, Global (BIFMA, mm), January 2026 ↗Checked Sep 26, 2026
- Sihoo M57 Netz Bürostuhl – DE Sihoo Offizieller Shop ↗Checked Oct 9, 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
Okamura Contessa IISIHOO M57
- Price
- ¥243,650 – ¥377,410$319.99
- Seat height
- 434–544 mm (17.1–21.4 in)46–55 cm (≈ 18.1-21.7 in)
- Seat depth
- 400–450 mm (15.7–17.7 in)18.11 in (≈ 46 cm)
- Load capacity
- 300 lb (136 kg)330 lb (≈ 150 kg)
- Recline
- Ankle-tilt reclining; recline angle 26°Reclines up to 126°
- Arms
- 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)3D coordinated armrests (up and down, left and right, forward and backward)
- Headrest
- Options: large fixed headrest or small adjustable headrest (up/down, front/back, swivel)Headrest adjusts vertically up to 3.9 inches and rotates 45 degrees
- Lumbar support
- Optional lumbar support with 60 mm height adjustment (can be retrofitted) (2.4 in)Dual-adjustable lumbar support (vertical and horizontal)
- Warranty
- 10 years: structural components, including mechanisms and adjustable arms; 5 years: casters, gas cylinder, adjustment levers; 2 years: coating finish, mesh and fabric, cushions, arm pads3 years
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 Okamura Contessa II as an option and the SIHOO M57 as standard.
Swap in a similar chair
Compare Okamura Contessa II with
Compare SIHOO M57 with
More comparisons
- 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.
- SIHOO M57 vs Branch Ergonomic Chair Arms: 3D coordinated armrests on SIHOO M57; 3D removable armrests on Branch Ergonomic Chair.
- SIHOO M57 vs HBADA E3 Air (2026 Edition) Arms: 3D coordinated armrests on SIHOO M57; Armrest Height: 68.5cm–84cm on HBADA E3 Air (2026 Edition).





