Duorest Alpha vs SIHOO B300 Pro
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 B300 Pro Ergonomic Office Chair | 4D Lumbar Support – Official US Sihoo Store ↗Checked Oct 9, 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 B300 Pro
- Price
- ₩413,000 – ₩520,000$329.99 – $379.99
- 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 backlockThree lockable recline angles: 105°, 120°, 135°
- Arms
- 3D arms: height adjustment range 72mm (2.8”), front-to-back adjustment range 40mm (1.6”), pivoting arm caps 17º inward and 17º outward6D All-Around Armrests (rotate, adjust, flip up)
- Headrest
- Optional Headrest accessory adjusts 49mm (1.9”) vertically; pivoting range 63º3D Ultra-Wide Headrest
- Warranty
- 3 Year Body Frame; 1 Year Mechanism, Cylinder, Form, Casters; 1 Year Flexible Rubber Connector, Seat Pan Materials3-Year Free Warranty
Questions
Which has a headrest?
Both: the Duorest Alpha as an option and the SIHOO B300 Pro as standard.
