Itoki ACT2 vs SIHOO Doro C300 Pro
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
22.5 lb
lighter: Itoki ACT2 weighs less than SIHOO Doro C300 Pro (official specs)
Differences at a glance
Sources
- ITOKI Product Catalog: Act2 KJ-457JE-GNB4 ↗Checked Sep 29, 2026
- Sihoo Doro C300 Pro Ergonomic Office Chair Fully Loaded Comfort – EU Sihoo official Shop ↗Checked Oct 8, 2026
- ITOKI Product Catalog: Act2 functions and features ↗Checked Sep 29, 2026
- Doro C300 Pro Ergonomic Office Chair | Adjustable Lumbar, 6D Armrests, Smart Recline – UK Sihoo official Shop ↗Checked Oct 8, 2026
- Sihoo Doro C300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 8, 2026
- ITOKI quality warranty ↗Checked Sep 29, 2026
- ITOKI (Japan) (price) ↗Checked Sep 25, 2026
Itoki ACT2SIHOO Doro C300 Pro
- Price
- ¥132,240$789.99 – $839.99
- Seat height
- 450–565 mm (17.7-22.2 in)46–56.7 cm
- Recline
- 20°Maximum recline angle of 135°
- Arms
- Adjustable arms (4D link arms): height, depth, rotation angle6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)
- Headrest
- Adjustable head support: 60 mm height, 30° front-backHeadrest adjusts up and down, back and forth, or rotates
- Lumbar support
- Pelvis & lumbar support: 60 mm, 7 stepsLumbar support automatically conforms to your spine (BM Tracking System)
- Warranty
- Structure 3 years (mechanisms and moving parts 2 years, exterior and surface finish 1 year)3 years
Questions
Which has a headrest?
Both: the Itoki ACT2 as standard and the SIHOO Doro C300 Pro as standard.
Swap in a similar chair
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More comparisons
- Itoki ACT2 vs Herman Miller Aeron The Itoki ACT2 encourages active sitting, while the Herman Miller Aeron offers iconic mesh ventilation.
- Itoki ACT2 vs Steelcase Gesture The Japanese ACT2 and American Gesture differ sharply on durability reports and value.
- 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.

