SIHOO M18 vs SIHOO B300 Pro
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
6.6 lb
lighter: SIHOO M18 weighs less than SIHOO B300 Pro (official specs)
Differences at a glance
Sources
- M18 Classic Ergonomischer Bürostuhl – SIHOO DE official store ↗Checked Oct 16, 2026
- Sihoo B300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 16, 2026
- Sihoo M18 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
SIHOO M18SIHOO B300 Pro
- Price
- $289.99 – $299.99$329.99 – $379.99
- Seat height
- 44–54 cm46.8–55.3 cm
- Seat depth
- 17.91 in (≈ 45.5 cm)16.5–18.5 in (≈ 42-47 cm)
- Load capacity
- 330 lb (≈ 150 kg)330 lb (≈ 150 kg)
- Recline
- Maximum 126° recline angleThree lockable recline angles: 105°, 120°, 135°
- Arms
- Adjustable armrests (Up and down)6D All-Around Armrests (rotate, adjust, flip up)
- Headrest
- Headrest moves 3.9" up and down and pivots 45°3D Ultra-Wide Headrest
- Lumbar support
- Lumbar support adjusts vertically and horizontally4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustment
- Warranty
- 3 years3-Year Free Warranty
Questions
Which is cheaper, the SIHOO M18 or the SIHOO B300 Pro?
The SIHOO M18 is cheaper to start: $289.99 versus $329.99 for the SIHOO B300 Pro at the brand stores (Oct 2026).
Which has a higher weight capacity?
Neither. Both are rated for 330 lb in their official specifications.
Which has a headrest?
Both: the SIHOO M18 as standard and the SIHOO B300 Pro as standard.
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- SIHOO M18 vs FlexiSpot OC3 Arms: Adjustable armrests on SIHOO M18; 2D on FlexiSpot OC3.
- 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).