SIHOO B300 Pro vs FlexiSpot Premium Ergonomic Office Chair (C7 Max)

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

SIHOO B300 Pro

SIHOO

SIHOO B300 Pro

$329.99 – $379.99

VS

7 years

longer warranty on FlexiSpot Premium Ergonomic Office Chair (C7 Max) than SIHOO B300 Pro (official terms)

SIHOO B300 ProFlexiSpot Premium Ergonomic Office Chair (C7 Max)
Price
$329.99 – $379.99$549.99 – $599.99
Seat height
46.8–55.3 cm18.5–20.9 in
Seat depth
16.5–18.5 in (≈ 42-47 cm)15.7–17.3 in
Load capacity
330 lb (≈ 150 kg)300 lb; 350 lb
Recline
Three lockable recline angles: 105°, 120°, 135°93–135°
Arms
6D All-Around Armrests (rotate, adjust, flip up)5D
Headrest
3D Ultra-Wide Headrest3D; 2.36 in, 135°
Lumbar support
4D MicroFit Lumbar Support: 0.8" depth and 2" height adjustmentadjustable self-adaptive dynamic
Warranty
3-Year Free Warranty10 years

Questions

Which is cheaper, the SIHOO B300 Pro or the FlexiSpot Premium Ergonomic Office Chair (C7 Max)?

The SIHOO B300 Pro is cheaper to start: $329.99 versus $549.99 for the FlexiSpot Premium Ergonomic Office Chair (C7 Max) at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO B300 Pro, rated for 330 lb versus 300 lb for the FlexiSpot Premium Ergonomic Office Chair (C7 Max).

Which has a headrest?

Both: the SIHOO B300 Pro as standard and the FlexiSpot Premium Ergonomic Office Chair (C7 Max) as standard.

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