FlexiSpot Standard Ergo Office Chair (C4) vs SIHOO Doro S100

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

FlexiSpot Standard Ergo Office Chair (C4)

FlexiSpot

FlexiSpot Standard Ergo Office Chair (C4)

$219.99 – $239.99

VS
SIHOO Doro S100

SIHOO

SIHOO Doro S100

$499.99 – $509.99

$280

lower starting price for FlexiSpot Standard Ergo Office Chair (C4) than SIHOO Doro S100 at the brand stores

Differences at a glance

FlexiSpot Standard Ergo Office Chair (C4)SIHOO Doro S100
Price
$219.99 – $239.99$499.99 – $509.99
Seat height
17.91–20.87 in46–54 cm
Seat depth
19.49 in15.15–17.12 in (≈ 38.5-43.5 cm)
Load capacity
300 lb330 lb (≈ 150 kg)
Recline
90–135°Reclines up to 135°
Arms
3D4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage); Up and down 2.76 in, forward and back 1.18 in, side to side, rotate 72°
Headrest
3DIntegrated headrest adjusts up or down; upper backrest in five levels
Lumbar support
fixedDual dynamic lumbar support
Warranty
5 years3 years

Questions

Which is cheaper, the FlexiSpot Standard Ergo Office Chair (C4) or the SIHOO Doro S100?

The FlexiSpot Standard Ergo Office Chair (C4) is cheaper to start: $219.99 versus $499.99 for the SIHOO Doro S100 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO Doro S100, rated for 330 lb versus 300 lb for the FlexiSpot Standard Ergo Office Chair (C4).

Which has a headrest?

Both: the FlexiSpot Standard Ergo Office Chair (C4) as standard and the SIHOO Doro S100 as standard.

FlexiSpot Standard Ergo Office Chair (C4): specs, reviews, where to buy →SIHOO Doro S100: specs, reviews, where to buy →

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