Duorest Alpha vs SIHOO Doro C300
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
Differences at a glance
Sources
- DUOREST ALPHA (official product page) ↗Checked Sep 29, 2026
- Sihoo Doro C300 Advanced Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
- Doro C300 Ergonomic Office Chair – UK Sihoo official Shop ↗Checked Sep 29, 2026
- Duorest Alpha Brochure (PDF) ↗Checked Sep 29, 2026
- DUOREST Warranty (official) ↗Checked Sep 29, 2026
- Duoback Official Store (Korea) (price) ↗Checked Sep 29, 2026
Duorest AlphaSIHOO Doro C300
- Price
- ₩413,000 – ₩520,000$559.99 – $569.99
- Load capacity
- Standard 300 lbs. weight capacity330 lb (≈ 150 kg)
- Recline
- Back reclines 18° from upright position; 3:1 back to seat synchronous movement with 3 position backlockRecline Angles: 110°, 120°, 130°
- Arms
- 3D arms: height adjustment range 72mm (2.8”), front-to-back adjustment range 40mm (1.6”), pivoting arm caps 17º inward and 17º outward4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage)
- Headrest
- Optional Headrest accessory adjusts 49mm (1.9”) vertically; pivoting range 63º3D Mechanical Headrest
- Warranty
- 3 Year Body Frame; 1 Year Mechanism, Cylinder, Form, Casters; 1 Year Flexible Rubber Connector, Seat Pan Materials3 years
What users mention
From 0 Duorest Alpha and 1 SIHOO Doro C300 user reviews, most mentioned first. Green is liked, orange is a caution.
Adjustability
Duorest Alpha3 mentionsSIHOO Doro C3007 mentionsDesign
Duorest Alpha3 mentionsSIHOO Doro C3005 mentionsBack support
Duorest Alpha3 mentionsSIHOO Doro C3004 mentionsComfort
Duorest Alpha2 mentionsSIHOO Doro C3004 mentionsArmrests
Duorest Alpha1 mentionSIHOO Doro C3005 mentionsPrice and value
Duorest Alpha2 mentionsSIHOO Doro C3003 mentions
Questions
Which has a headrest?
Both: the Duorest Alpha as an option and the SIHOO Doro C300 as standard.
What do owners mention most?
Back support for the Duorest Alpha, and adjustability for the SIHOO Doro C300, based on review summaries.
Swap in a similar chair
Compare Duorest Alpha with
Compare SIHOO Doro C300 with
More comparisons
- Duorest Alpha vs SIHOO Doro S300 Load capacity: Standard 300 lbs. weight capacity on Duorest Alpha; 330 lb on SIHOO Doro S300.
- 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).





