SIHOO Doro S300 vs KI Signia

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

SIHOO

SIHOO Doro S300

$999.99

KI Signia

$930 – $1,076

Nearly the same price

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

Differences at a glance

SIHOO Doro S300KI Signia

Price: $999.99$930 – $1,076
Seat height: 47 – 55.5 cm (18.50 – 21.85 in)17.5–22 in (44.5–55.9 cm)
Seat depth: 40 – 47 cm (15.75 – 18.50 in)17–20 in (43.2–50.8 cm)
Recline: Recline Angles: 100°, 110°, 130°Five-position back travel limiter provides up to 27 degrees of recline
Arms: 6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)Armless, fixed reverse cantilever conference arms, 1D adjustable arms, or 4D adjustable arms
Lumbar support: Dual dynamic lumbar support; angle 90°-105° fine-tuned with the gas liftOptional lumbar support with 2.5" of vertical adjustment
Warranty: 3 yearsLifetime

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

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