Itoki ACT2 vs SIHOO M59AS
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
0.6 in
more seat-height adjustment on Itoki ACT2 than SIHOO M59AS (official specs)
Differences at a glance
Sources
- ITOKI Product Catalog: Act2 KJ-457JE-GNB4 ↗Checked Sep 29, 2026
- Sihoo M59AS Ergonomic Chair | Dual-Section Back & Flip-Up Armrests – UK Sihoo official Shop ↗Checked Oct 9, 2026
- ITOKI Product Catalog: Act2 functions and features ↗Checked Sep 29, 2026
- Sihoo M59AS Ergonomic Office Chair with Dual-Section Backrest – Official US Sihoo Store ↗Checked Oct 9, 2026
- ITOKI quality warranty ↗Checked Sep 29, 2026
- ITOKI (Japan) (price) ↗Checked Sep 25, 2026
Itoki ACT2SIHOO M59AS
- Price
- ¥132,240$449.99
- Seat height
- 450–565 mm (17.7-22.2 in)46.5–56.5 cm
- Recline
- 20°Recline up to 126°
- Arms
- Adjustable arms (4D link arms): height, depth, rotation angle3D coordinated flip-up armrests (flip up and down, left and right, forward and backward)
- Headrest
- Adjustable head support: 60 mm height, 30° front-backDouble-jointed headrest (height and angle)
- Lumbar support
- Pelvis & lumbar support: 60 mm, 7 stepsDynamic lumbar support in a dual-section backrest
- 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 M59AS as standard.
Swap in a similar chair
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Compare SIHOO M59AS with
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- SIHOO M59AS vs SIHOO B100 Headrest: Double-jointed headrest on SIHOO M59AS; Wide 2D adjustable headrest on SIHOO B100.