Okamura Sylphy vs Duorest Alpha
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
Differences at a glance
Sources
- Sylphy | Office | Product information | Okamura Corporation ↗Checked Sep 29, 2026
- DUOREST ALPHA (official product page) ↗Checked Sep 29, 2026
- Duorest Alpha Brochure (PDF) ↗Checked Sep 29, 2026
- Okamura office seating safety and warranty periods (updated Jan 28, 2026) ↗Checked Sep 29, 2026
- DUOREST Warranty (official) ↗Checked Sep 29, 2026
- OKAMURA Lifestyle Store (Japan) (price) ↗Checked Oct 11, 2026
- Duoback Official Store (Korea) (price) ↗Checked Sep 29, 2026
Okamura SylphyDuorest Alpha
- Price
- From ¥106,040₩413,000 – ₩520,000
- Recline
- Back-seat synchro recline with forward tilt: 23° upright to reclined, 10° upright to forward; locks in 4 positionsBack reclines 18° from upright position; 3:1 back to seat synchronous movement with 3 position backlock
- Arms
- Adjustable arms: 100 mm height; arm pad 50 mm front-back, 20° inward, 20° outward3D arms: height adjustment range 72mm (2.8”), front-to-back adjustment range 40mm (1.6”), pivoting arm caps 17º inward and 17º outward
- Headrest
- Adjustable headrest: 100 mm height, 35° angleOptional Headrest accessory adjusts 49mm (1.9”) vertically; pivoting range 63º
- Warranty
- Structure 8 years (purchases from Jan 5, 2021); mechanisms and moving parts 2 years; exterior and surface finish 1 year3 Year Body Frame; 1 Year Mechanism, Cylinder, Form, Casters; 1 Year Flexible Rubber Connector, Seat Pan Materials
What users mention
From 2 Okamura Sylphy and 0 Duorest Alpha user reviews, most mentioned first. Green is liked, orange is a caution.
Comfort
Okamura Sylphy4 mentionsDuorest Alpha2 mentionsPrice and value
Okamura Sylphy4 mentionsDuorest Alpha2 mentionsBuild quality
Okamura Sylphy3 mentionsDuorest Alpha2 mentionsBack support
Okamura Sylphy2 mentionsDuorest Alpha3 mentionsAdjustability
Okamura Sylphy2 mentionsDuorest Alpha3 mentionsDesign
Okamura Sylphy2 mentionsDuorest Alpha3 mentions
Questions
Which has a headrest?
Both: the Okamura Sylphy as standard and the Duorest Alpha as an option.
What do owners mention most?
Comfort for the Okamura Sylphy, and back support for the Duorest Alpha, based on review summaries.
Swap in a similar chair
Compare Okamura Sylphy with
More comparisons
- Okamura Sylphy vs Herman Miller Aeron Arms: Adjustable arms: 100 mm height on Okamura Sylphy; Arm height 7.5–11.5 in on Herman Miller Aeron.
- Okamura Sylphy vs Steelcase Gesture Arms: Adjustable arms: 100 mm height on Okamura Sylphy; Width 10.25–22.5 in between arms on Steelcase Gesture.
- Duorest Alpha vs SIHOO Doro S300 Load capacity: Standard 300 lbs. weight capacity on Duorest Alpha; 330 lb on SIHOO Doro S300.





