SIHOO Doro C300 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
$559.99 – $569.99
VS
1.2 in
more seat-height adjustment on Okamura Contessa II than SIHOO Doro C300 (official specs)
Differences at a glance
Sources
- Doro C300 Ergonomic Office Chair – UK Sihoo official Shop ↗Checked Sep 29, 2026
- Okamura Contessa II Spec Guide, Global (BIFMA, mm), January 2026 ↗Checked Sep 26, 2026
- Sihoo Doro C300 Advanced Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 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 Doro C300Okamura Contessa II
- Price
- $559.99 – $569.99¥243,650 – ¥377,410
- Seat height
- 47–55 cm434–544 mm (17.1–21.4 in)
- Seat depth
- 43.5–46 cm400–450 mm (15.7–17.7 in)
- Load capacity
- 330 lb (≈ 150 kg)300 lb (136 kg)
- Recline
- Recline Angles: 110°, 120°, 130°Ankle-tilt reclining; recline angle 26°
- Arms
- 4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage)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
- 3D Mechanical HeadrestOptions: large fixed headrest or small adjustable headrest (up/down, front/back, swivel)
- Lumbar support
- Self-adaptive dynamic lumbar supportOptional 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
What users mention
From 1 SIHOO Doro C300 and 2 Okamura Contessa II user reviews, most mentioned first. Green is liked, orange is a caution.
Adjustability
SIHOO Doro C3007 mentionsOkamura Contessa II5 mentionsComfort
SIHOO Doro C3004 mentionsOkamura Contessa II7 mentionsBack support
SIHOO Doro C3004 mentionsOkamura Contessa II7 mentionsBreathability
SIHOO Doro C3004 mentionsOkamura Contessa II7 mentionsSeat
SIHOO Doro C3004 mentionsOkamura Contessa II7 mentionsPrice and value
SIHOO Doro C3003 mentionsOkamura Contessa II6 mentions
Questions
Which has a higher weight capacity?
The SIHOO Doro C300, rated for 330 lb versus 300 lb for the Okamura Contessa II.
Which has a headrest?
Both: the SIHOO Doro C300 as standard and the Okamura Contessa II as an option.
What do owners mention most?
Adjustability for the SIHOO Doro C300, and comfort for the Okamura Contessa II, based on review summaries.
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More comparisons
- SIHOO Doro C300 vs Steelcase Leap V2 Headrest: 3D Mechanical Headrest on SIHOO Doro C300; Optional on Steelcase Leap V2.
- SIHOO Doro C300 vs Herman Miller Aeron Headrest: 3D Mechanical Headrest on SIHOO Doro C300; None offered by Herman Miller on Herman Miller Aeron.
- SIHOO Doro C300 vs Steelcase Series 1 Headrest: 3D Mechanical Headrest on SIHOO Doro C300; Optional headrest on Steelcase Series 1.
- SIHOO Doro C300 vs HBADA E3 Air (2026 Edition) Arms: 4D coordinated armrests on SIHOO Doro C300; Armrest Height: 68.5cm–84cm on HBADA E3 Air (2026 Edition).
- 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.
