KI Signia vs SIHOO Doro C300 Ultra V2
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$250.01
lower starting price for SIHOO Doro C300 Ultra V2 than KI Signia at the brand stores
Differences at a glance
Sources
- Signia Task Chair product page, KI ↗Checked Sep 29, 2026
- Doro C300 Ultra V2 Zero‑Gravity Full‑Body Adaptive Ergonomic Chair – UK Sihoo official Shop ↗Checked Oct 13, 2026
- Sihoo Doro C300 Ultra V2 | Ergonomic Office Chair – Official US Sihoo Store ↗Checked Oct 13, 2026
KI SigniaSIHOO Doro C300 Ultra V2
- Price
- $930 – $1,076$679.99 – $689.99
- Seat height
- 17.5–22 in (44.5–55.9 cm)47.5–55.5 cm (≈ 18.7-21.9 in)
- Seat depth
- 17–20 in (43.2–50.8 cm)16.9–18.5 in (≈ 43-47 cm)
- Recline
- Five-position back travel limiter provides up to 27 degrees of reclineRecline Angles 105°, 120°, 135°
- Arms
- Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
- Lumbar support
- Optional lumbar support with 2.5" of vertical adjustmentDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
- Warranty
- Lifetime3 years (covers manufacturing defects)
Questions
Which is cheaper, the KI Signia or the SIHOO Doro C300 Ultra V2?
The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $930 for the KI Signia at the brand stores (Sep 2026).


