SIHOO B300 Pro vs SIHOO M59AS

Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.

SIHOO

SIHOO B300 Pro

$329.99 – $379.99

SIHOO

SIHOO M59AS

$449.99

$120

lower starting price for SIHOO B300 Pro than SIHOO M59AS at the brand stores

Differences at a glance

SIHOO B300 ProSIHOO M59AS

Price: $329.99 – $379.99$449.99
Seat height: 46.8–55.3 cm46.5–56.5 cm
Seat depth: 16.5–18.5 in (≈ 42-47 cm)17.13 in (≈ 43.5 cm)
Load capacity: 330 lb (≈ 150 kg)330 lb (≈ 150 kg)
Recline: Three lockable recline angles: 105°, 120°, 135°Recline up to 126°
Arms: 6D All-Around Armrests (rotate, adjust, flip up)3D coordinated flip-up armrests (flip up and down, left and right, forward and backward)
Headrest: 3D Ultra-Wide HeadrestDouble-jointed headrest (height and angle)
Lumbar support: 4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustmentDynamic lumbar support in a dual-section backrest
Warranty: 3-Year Free Warranty3 years

Which is cheaper, the SIHOO B300 Pro or the SIHOO M59AS?

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 B300 Pro as standard and the SIHOO M59AS as standard.