SIHOO B100 vs FlexiSpot Standard Ergo Office Chair (C4)

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

SIHOO B100

SIHOO

SIHOO B100

$199.99 – $259.99

VS
FlexiSpot Standard Ergo Office Chair (C4)

FlexiSpot

FlexiSpot Standard Ergo Office Chair (C4)

$219.99 – $239.99

2 years

longer warranty on FlexiSpot Standard Ergo Office Chair (C4) than SIHOO B100 (official terms)

Differences at a glance

SIHOO B100FlexiSpot Standard Ergo Office Chair (C4)
Price
$199.99 – $259.99$219.99 – $239.99
Seat height
Seat height adjustable from 18.3" to 21.9"17.91–20.87 in
Load capacity
330 lb (≈ 150 kg)300 lb
Recline
Three lockable angles: 110°, 125° and 135°90–135°
Arms
Flip-up 2D armrests3D
Headrest
Wide 2D adjustable headrest3D
Lumbar support
Floating sacral cushion (targeted sacral support)fixed
Warranty
3 years5 years

Questions

Which is cheaper, the SIHOO B100 or the FlexiSpot Standard Ergo Office Chair (C4)?

The SIHOO B100 is cheaper to start: $199.99 versus $219.99 for the FlexiSpot Standard Ergo Office Chair (C4) at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO B100, rated for 330 lb versus 300 lb for the FlexiSpot Standard Ergo Office Chair (C4).

Which has a headrest?

Both: the SIHOO B100 as standard and the FlexiSpot Standard Ergo Office Chair (C4) as standard.

SIHOO B100: specs, reviews, where to buy →FlexiSpot Standard Ergo Office Chair (C4): specs, reviews, where to buy →

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