SIHOO Doro C300 Pro vs Okamura Contessa II
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

SIHOO
SIHOO Doro C300 Pro
$789.99 – $839.99
VS
30 lb
higher rated load for SIHOO Doro C300 Pro than Okamura Contessa II (official specs)
Differences at a glance
Sources
- Sihoo Doro C300 Pro Ergonomic Office Chair Fully Loaded Comfort – EU Sihoo official Shop ↗Checked Oct 8, 2026
- Okamura Contessa II Spec Guide, Global (BIFMA, mm), January 2026 ↗Checked Sep 26, 2026
- Sihoo Doro C300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 8, 2026
- Contessa II | Okamura global (okamura.com, Asia Pacific English) ↗Checked Sep 26, 2026
- Doro C300 Pro Ergonomic Office Chair | Adjustable Lumbar, 6D Armrests, Smart Recline – UK Sihoo official Shop ↗Checked Oct 8, 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 Doro C300 ProOkamura Contessa II
- Price
- $789.99 – $839.99¥243,650 – ¥377,410
- Seat height
- 46–56.7 cm434–544 mm (17.1–21.4 in)
- Seat depth
- 16.81–17.76 in (≈ 42.7-45.1 cm)400–450 mm (15.7–17.7 in)
- Load capacity
- 330 lb (≈ 150 kg)300 lb (136 kg)
- Recline
- Maximum recline angle of 135°Ankle-tilt reclining; recline angle 26°
- Arms
- 6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)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 up and down, back and forth, or rotatesOptions: large fixed headrest or small adjustable headrest (up/down, front/back, swivel)
- Lumbar support
- Lumbar support automatically conforms to your spine (BM Tracking System)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 Doro C300 Pro, rated for 330 lb versus 300 lb for the Okamura Contessa II.
Which has a headrest?
Both: the SIHOO Doro C300 Pro as standard and the Okamura Contessa II as an option.
SIHOO Doro C300 Pro: specs, reviews, where to buy →Okamura Contessa II: specs, reviews, where to buy →
Swap in a similar chair
Compare SIHOO Doro C300 Pro with
Compare Okamura Contessa II with
More comparisons
- SIHOO Doro C300 Pro vs Steelcase Gesture Arms: 6D coordinated armrests on SIHOO Doro C300 Pro; Width 10.25–22.5 in between arms on Steelcase Gesture.
- SIHOO Doro C300 Pro vs HBADA X7 Air SIHOO Doro C300 Pro lists at $789.99 – $839.99; HBADA X7 Air at $1,399 (official stores).
- SIHOO Doro C300 Pro vs HBADA E3 Pro (2026 Edition) Arms: 6D coordinated armrests on SIHOO Doro C300 Pro; Armrest Height: 28.3"–34.4" on HBADA E3 Pro (2026 Edition).
- SIHOO Doro C300 Pro vs Autonomous ErgoChair Pro Arms: 6D coordinated armrests on SIHOO Doro C300 Pro; 3D armrests on Autonomous ErgoChair Pro.
- 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.

