FlexiSpot Soutien Ergonomic Office Chair (C5) vs SIHOO Doro C300 Pro V2

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

FlexiSpot Soutien Ergonomic Office Chair (C5)

FlexiSpot

FlexiSpot Soutien Ergonomic Office Chair (C5)

$249.99 – $279.99

VS
SIHOO Doro C300 Pro V2

SIHOO

SIHOO Doro C300 Pro V2

$499.99 – $549.99

$250

lower starting price for FlexiSpot Soutien Ergonomic Office Chair (C5) than SIHOO Doro C300 Pro V2 at the brand stores

Differences at a glance

FlexiSpot Soutien Ergonomic Office Chair (C5)SIHOO Doro C300 Pro V2
Price
$249.99 – $279.99$499.99 – $549.99
Seat height
17.9–20.9 in17.5–20.9 in
Seat depth
18.7 inSeat Depth 16.9" - 18.5"
Load capacity
300 lb330 lb (≈ 150 kg)
Recline
95–115°Recline Angles 105°, 120°, 135°
Arms
2D8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Headrest
2DUltra-wide 3D headrest, adjusts in three directions
Lumbar support
2DDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty
5 years3 years (covers manufacturing defects)

Questions

Which is cheaper, the FlexiSpot Soutien Ergonomic Office Chair (C5) or the SIHOO Doro C300 Pro V2?

The FlexiSpot Soutien Ergonomic Office Chair (C5) is cheaper to start: $249.99 versus $499.99 for the SIHOO Doro C300 Pro V2 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO Doro C300 Pro V2, rated for 330 lb versus 300 lb for the FlexiSpot Soutien Ergonomic Office Chair (C5).

Which has a headrest?

Both: the FlexiSpot Soutien Ergonomic Office Chair (C5) as standard and the SIHOO Doro C300 Pro V2 as standard.

FlexiSpot Soutien Ergonomic Office Chair (C5): specs, reviews, where to buy →SIHOO Doro C300 Pro V2: specs, reviews, where to buy →

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