KI Signia vs SIHOO Doro S300

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

KI Signia

$930 – $1,076

SIHOO

SIHOO Doro S300

$999.99

Nearly the same price

$930 vs $999.99 starting prices at the brand stores (KI Signia vs SIHOO Doro S300)

Differences at a glance

KI SigniaSIHOO Doro S300

Price: $930 – $1,076$999.99
Seat height: 17.5–22 in (44.5–55.9 cm)47 – 55.5 cm (18.50 – 21.85 in)
Seat depth: 17–20 in (43.2–50.8 cm)40 – 47 cm (15.75 – 18.50 in)
Recline: Five-position back travel limiter provides up to 27 degrees of reclineRecline Angles: 100°, 110°, 130°
Arms: Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)
Lumbar support: Optional lumbar support with 2.5" of vertical adjustmentDual dynamic lumbar support; angle 90°-105° fine-tuned with the gas lift
Warranty: Lifetime3 years

Which is cheaper, the KI Signia or the SIHOO Doro S300?

The KI Signia is cheaper to start: $930 versus $999.99 for the SIHOO Doro S300 at the brand stores (Sep 2026).