SIHOO Doro C300 Ultra V2 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 Doro C300 Ultra V2

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

VS
FlexiSpot Standard Ergo Office Chair (C4)

FlexiSpot

FlexiSpot Standard Ergo Office Chair (C4)

$219.99 – $239.99

$460

lower starting price for FlexiSpot Standard Ergo Office Chair (C4) than SIHOO Doro C300 Ultra V2 at the brand stores

Differences at a glance

SIHOO Doro C300 Ultra V2FlexiSpot Standard Ergo Office Chair (C4)
Price
$679.99 – $689.99$219.99 – $239.99
Seat height
47.5–55.5 cm (≈ 18.7-21.9 in)17.91–20.87 in
Seat depth
16.9–18.5 in (≈ 43-47 cm)19.49 in
Load capacity
330 lb (≈ 150 kg)300 lb
Recline
Recline Angles 105°, 120°, 135°90–135°
Arms
8D Bionic Armrests (up, down, forward, back, rotate, or tilt)3D
Headrest
Ultra-wide 3D headrest, adjusts in three directions3D
Lumbar support
Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levelsfixed
Warranty
3 years (covers manufacturing defects)5 years

Questions

Which is cheaper, the SIHOO Doro C300 Ultra V2 or the FlexiSpot Standard Ergo Office Chair (C4)?

The FlexiSpot Standard Ergo Office Chair (C4) is cheaper to start: $219.99 versus $679.99 for the SIHOO Doro C300 Ultra V2 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO Doro C300 Ultra V2, rated for 330 lb versus 300 lb for the FlexiSpot Standard Ergo Office Chair (C4).

Which has a headrest?

Both: the SIHOO Doro C300 Ultra V2 as standard and the FlexiSpot Standard Ergo Office Chair (C4) as standard.

SIHOO Doro C300 Ultra V2: specs, reviews, where to buy →FlexiSpot Standard Ergo Office Chair (C4): specs, reviews, where to buy →

Swap in a similar chair

Compare SIHOO Doro C300 Ultra V2 with

Compare FlexiSpot Standard Ergo Office Chair (C4) with

More comparisons