SIHOO B300 Pro vs SIHOO M57

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 M57

$319.99

Nearly the same price

$329.99 vs $319.99 starting prices at the brand stores (SIHOO B300 Pro vs SIHOO M57)

Differences at a glance

SIHOO B300 ProSIHOO M57

Price: $329.99 – $379.99$319.99
Seat height: 46.8–55.3 cm46–55 cm (≈ 18.1-21.7 in)
Seat depth: 16.5–18.5 in (≈ 42-47 cm)18.11 in (≈ 46 cm)
Load capacity: 330 lb (≈ 150 kg)330 lb (≈ 150 kg)
Recline: Three lockable recline angles: 105°, 120°, 135°Reclines up to 126°
Arms: 6D All-Around Armrests (rotate, adjust, flip up)3D coordinated armrests (up and down, left and right, forward and backward)
Headrest: 3D Ultra-Wide HeadrestHeadrest adjusts vertically up to 3.9 inches and rotates 45 degrees
Lumbar support: 4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustmentDual-adjustable lumbar support (vertical and horizontal)
Warranty: 3-Year Free Warranty3 years

Which is cheaper, the SIHOO B300 Pro or the SIHOO M57?

The SIHOO M57 is cheaper to start: $319.99 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 B300 Pro as standard and the SIHOO M57 as standard.