Itoki ACT2 vs SIHOO Doro C300
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
18.4 lb
lighter: Itoki ACT2 weighs less than SIHOO Doro C300 (official specs)
Differences at a glance
Sources
- ITOKI Product Catalog: Act2 KJ-457JE-GNB4 ↗Checked Sep 29, 2026
- Doro C300 Ergonomic Office Chair – UK Sihoo official Shop ↗Checked Sep 29, 2026
- ITOKI Product Catalog: Act2 functions and features ↗Checked Sep 29, 2026
- Sihoo Doro C300 Advanced Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
- ITOKI quality warranty ↗Checked Sep 29, 2026
- ITOKI (Japan) (price) ↗Checked Sep 25, 2026
Itoki ACT2SIHOO Doro C300
- Price
- ¥132,240$559.99 – $569.99
- Seat height
- 450–565 mm (17.7-22.2 in)47–55 cm
- Recline
- 20°Recline Angles: 110°, 120°, 130°
- Arms
- Adjustable arms (4D link arms): height, depth, rotation angle4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage)
- Headrest
- Adjustable head support: 60 mm height, 30° front-back3D Mechanical Headrest
- Lumbar support
- Pelvis & lumbar support: 60 mm, 7 stepsSelf-adaptive dynamic lumbar support
- Warranty
- Structure 3 years (mechanisms and moving parts 2 years, exterior and surface finish 1 year)3 years
What users mention
From 6 Itoki ACT2 and 1 SIHOO Doro C300 user reviews, most mentioned first. Green is liked, orange is a caution.
Design
Itoki ACT28 mentionsSIHOO Doro C3005 mentionsAdjustability
Itoki ACT25 mentionsSIHOO Doro C3007 mentionsBack support
Itoki ACT26 mentionsSIHOO Doro C3004 mentionsSeat
Itoki ACT25 mentionsSIHOO Doro C3004 mentionsArmrests
Itoki ACT24 mentionsSIHOO Doro C3005 mentionsComfort
Itoki ACT24 mentionsSIHOO Doro C3004 mentions
Questions
Which has a headrest?
Both: the Itoki ACT2 as standard and the SIHOO Doro C300 as standard.
What do owners mention most?
Design for the Itoki ACT2, and adjustability for the SIHOO Doro C300, based on review summaries.
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 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).