SIHOO M59AS vs SIHOO B300 Pro
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$120
lower starting price for SIHOO B300 Pro than SIHOO M59AS at the brand stores
Differences at a glance
Sources
- Sihoo M59AS Ergonomic Chair | Dual-Section Back & Flip-Up Armrests – UK Sihoo official Shop ↗Checked Oct 9, 2026
- Sihoo B300 Pro Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 16, 2026
- Sihoo M59AS Ergonomic Office Chair with Dual-Section Backrest – Official US Sihoo Store ↗Checked Oct 9, 2026
SIHOO M59ASSIHOO B300 Pro
- Price
- $449.99$329.99 – $379.99
- Seat height
- 46.5–56.5 cm46.8–55.3 cm
- Seat depth
- 17.13 in (≈ 43.5 cm)16.5–18.5 in (≈ 42-47 cm)
- Load capacity
- 330 lb (≈ 150 kg)330 lb (≈ 150 kg)
- Recline
- Recline up to 126°Three lockable recline angles: 105°, 120°, 135°
- Arms
- 3D coordinated flip-up armrests (flip up and down, left and right, forward and backward)6D All-Around Armrests (rotate, adjust, flip up)
- Headrest
- Double-jointed headrest (height and angle)3D Ultra-Wide Headrest
- Lumbar support
- Dynamic lumbar support in a dual-section backrest4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustment
- Warranty
- 3 years3-Year Free Warranty
Questions
Which is cheaper, the SIHOO M59AS or the SIHOO B300 Pro?
The SIHOO B300 Pro is cheaper to start: $329.99 versus $449.99 for the SIHOO M59AS 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 M59AS as standard and the SIHOO B300 Pro as standard.
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More comparisons
- SIHOO M59AS vs HBADA E3 Air (2026 Edition) Arms: 3D coordinated flip-up armrests on SIHOO M59AS; Armrest Height: 68.5cm–84cm on HBADA E3 Air (2026 Edition).
- SIHOO M59AS vs HBADA E3 Pro (2026 Edition) Arms: 3D coordinated flip-up armrests on SIHOO M59AS; Armrest Height: 28.3"–34.4" on HBADA E3 Pro (2026 Edition).
- SIHOO M59AS vs SIHOO M57 Arms: 3D coordinated flip-up armrests on SIHOO M59AS; 3D coordinated armrests on SIHOO M57.
- SIHOO M59AS vs SIHOO B100 Headrest: Double-jointed headrest on SIHOO M59AS; Wide 2D adjustable headrest on SIHOO B100.
- 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).