SIHOO Doro C300 Ultra V2 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
SIHOO Doro C300 Ultra V2
$679.99 – $689.99
FlexiSpot
FlexiSpot Soutien Ergonomic Office Chair (C5)
$249.99 – $279.99
$430
lower starting price for FlexiSpot Soutien Ergonomic Office Chair (C5) than SIHOO Doro C300 Ultra V2 at the brand stores
Differences at a glance
Sources
- Doro C300 Ultra V2 Zero‑Gravity Full‑Body Adaptive Ergonomic Chair – UK Sihoo official Shop ↗Checked Oct 13, 2026
- Soutien Ergonomic Office Chair C5 | Flexispot ↗Checked Oct 17, 2026
- Sihoo Doro C300 Ultra V2 | Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 13, 2026
- Price
- $679.99 – $689.99$249.99 – $279.99
- Seat height
- 47.5–55.5 cm (≈ 18.7-21.9 in)17.9–20.9 in
- Seat depth
- 16.9–18.5 in (≈ 43-47 cm)18.7 in
- Load capacity
- 330 lb (≈ 150 kg)300 lb
- Recline
- Recline Angles 105°, 120°, 135°95–115°
- Arms
- 8D Bionic Armrests (up, down, forward, back, rotate, or tilt)2D
- Headrest
- Ultra-wide 3D headrest, adjusts in three directions2D
- Lumbar support
- Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels2D
- Warranty
- 3 years (covers manufacturing defects)5 years
Questions
Which is cheaper, the SIHOO Doro C300 Ultra V2 or the FlexiSpot Soutien Ergonomic Office Chair (C5)?
The FlexiSpot Soutien Ergonomic Office Chair (C5) is cheaper to start: $249.99 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 Soutien Ergonomic Office Chair (C5).
Which has a headrest?
Both: the SIHOO Doro C300 Ultra V2 as standard and the FlexiSpot Soutien Ergonomic Office Chair (C5) as standard.
