SIHOO B100 Pro vs FlexiSpot Soutien Ergonomic Office Chair (C5)

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

SIHOO B100 Pro

SIHOO

SIHOO B100 Pro

$259.99 – $299.99

VS

2 years

longer warranty on FlexiSpot Soutien Ergonomic Office Chair (C5) than SIHOO B100 Pro (official terms)

SIHOO B100 ProFlexiSpot Soutien Ergonomic Office Chair (C5)
Price
$259.99 – $299.99$249.99 – $279.99
Load capacity
330 lb (≈ 150 kg)300 lb
Recline
3-position recline up to 135°95–115°
Arms
Enlarged 4D flip-up armrests2D
Headrest
Wide 3D adjustable headrest2D
Lumbar support
Responsive lower-back support2D
Warranty
3 years5 years

Questions

Which is cheaper, the SIHOO B100 Pro or the FlexiSpot Soutien Ergonomic Office Chair (C5)?

The FlexiSpot Soutien Ergonomic Office Chair (C5) is cheaper to start: $249.99 versus $259.99 for the SIHOO B100 Pro at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO B100 Pro, rated for 330 lb versus 300 lb for the FlexiSpot Soutien Ergonomic Office Chair (C5).

Which has a headrest?

Both: the SIHOO B100 Pro as standard and the FlexiSpot Soutien Ergonomic Office Chair (C5) as standard.

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