Itoki ACT2 vs SIHOO B300 Pro
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
10.9 lb
lighter: Itoki ACT2 weighs less than SIHOO B300 Pro (official specs)
Differences at a glance
Sources
- ITOKI Product Catalog: Act2 KJ-457JE-GNB4 ↗Checked Sep 29, 2026
- Sihoo B300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 16, 2026
- ITOKI Product Catalog: Act2 functions and features ↗Checked Sep 29, 2026
- ITOKI quality warranty ↗Checked Sep 29, 2026
- ITOKI (Japan) (price) ↗Checked Sep 25, 2026
Itoki ACT2SIHOO B300 Pro
- Price
- ¥132,240$329.99 – $379.99
- Seat height
- 450–565 mm (17.7-22.2 in)46.8–55.3 cm
- Recline
- 20°Three lockable recline angles: 105°, 120°, 135°
- Arms
- Adjustable arms (4D link arms): height, depth, rotation angle6D All-Around Armrests (rotate, adjust, flip up)
- Headrest
- Adjustable head support: 60 mm height, 30° front-back3D Ultra-Wide Headrest
- Lumbar support
- Pelvis & lumbar support: 60 mm, 7 steps4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustment
- Warranty
- Structure 3 years (mechanisms and moving parts 2 years, exterior and surface finish 1 year)3-Year Free Warranty
Questions
Which has a headrest?
Both: the Itoki ACT2 as standard and the SIHOO B300 Pro as standard.
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- SIHOO B300 Pro vs HBADA E3 Air (2026 Edition) Arms: 6D All-Around Armrests on SIHOO B300 Pro; Armrest Height: 68.5cm–84cm on HBADA E3 Air (2026 Edition).