Okamura Contessa II vs SIHOO B100 Pro
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
VS

SIHOO
SIHOO B100 Pro
$259.99 – $299.99
30 lb
higher rated load for SIHOO B100 Pro than Okamura Contessa II (official specs)
Differences at a glance
Sources
- Contessa II | Okamura global (okamura.com, Asia Pacific English) ↗Checked Sep 26, 2026
- Sihoo B100 Pro Ergonomic Office Chair With Flip-Up Armrest – Official US Sihoo Store ↗Checked Oct 9, 2026
- Okamura Japan product page: Contessa Seconda (Japanese) ↗Checked Sep 26, 2026
- Okamura Contessa II Spec Guide, Global (BIFMA, mm), January 2026 ↗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 B100 Pro
- Price
- ¥243,650 – ¥377,410$259.99 – $299.99
- Load capacity
- 300 lb (136 kg)330 lb (≈ 150 kg)
- Recline
- Ankle-tilt reclining; recline angle 26°3-position recline up to 135°
- 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)Enlarged 4D flip-up armrests
- Headrest
- Options: large fixed headrest or small adjustable headrest (up/down, front/back, swivel)Wide 3D adjustable headrest
- Lumbar support
- Optional lumbar support with 60 mm height adjustment (can be retrofitted) (2.4 in)Responsive lower-back support
- 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 B100 Pro, 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 B100 Pro as standard.
Swap in a similar chair
Compare Okamura Contessa II with
Compare SIHOO B100 Pro with
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- 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 B100 Pro vs FlexiSpot OC3 Headrest: Wide 3D adjustable headrest on SIHOO B100 Pro; 2D headrest on FlexiSpot OC3.
- SIHOO B100 Pro vs HBADA E3 Air (2026 Edition) Arms: Enlarged 4D flip-up armrests on SIHOO B100 Pro; Armrest Height: 68.5cm–84cm on HBADA E3 Air (2026 Edition).



