Itoki ACT2 vs SIHOO M56C
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
4.4 lb
lighter: Itoki ACT2 weighs less than SIHOO M56C (official specs)
Differences at a glance
Sources
- ITOKI Product Catalog: Act2 functions and features ↗Checked Sep 29, 2026
- Sihoo M56C Ergonomic Office Chair - Full Back Support with Cotton Seat Cushion – Official US Sihoo Store ↗Checked Oct 13, 2026
- ITOKI quality warranty ↗Checked Sep 29, 2026
- ITOKI (Japan) (price) ↗Checked Sep 25, 2026
Itoki ACT2SIHOO M56C
- Price
- ¥132,240$184.99
- Recline
- 20°Maximum tilt angle of 125° (reclining lock with 1 position)
- Arms
- Adjustable arms (4D link arms): height, depth, rotation angleArmrests adjustable up and down
- Headrest
- Adjustable head support: 60 mm height, 30° front-backHeadrest moves up and down and tilts
- Lumbar support
- Pelvis & lumbar support: 60 mm, 7 stepsUltra-wide dynamic lumbar support: a flexible elastic plate that moves with the backrest (no manual adjustment listed)
- 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 M56C as standard.
Swap in a similar chair
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Compare SIHOO M56C with
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 M56C vs SIHOO M18 Arms: Armrests adjustable up and down on SIHOO M56C; Adjustable armrests on SIHOO M18.