SIHOO Doro C300 Ultra V2 vs KI Altus

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

KI Altus

$881 – $1,516

$201.01

lower starting price for SIHOO Doro C300 Ultra V2 than KI Altus at the brand stores

Differences at a glance

SIHOO Doro C300 Ultra V2KI Altus

Price: $679.99 – $689.99$881 – $1,516
Seat height: 47.5–55.5 cm (≈ 18.7-21.9 in)17–21.75 in (43.2–55.2 cm); 16.25–20.75 in (41.3–52.7 cm)
Seat depth: 16.9–18.5 in (≈ 43-47 cm)17.25–19.75 in (43.8–50.2 cm); 15.5–18 in (39.4–45.7 cm)
Load capacity: 330 lb (≈ 150 kg)supports up to 400 pounds
Arms: 8D Bionic Armrests (up, down, forward, back, rotate, or tilt)Adjustable arms, fixed arms, or armless
Headrest: Ultra-wide 3D headrest, adjusts in three directionsHeadrest available (Mesh Task / Fabric Task Headrest Adjustable Armchair)
Lumbar support: Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levelsMesh chair: optional adjustable lumbar (height and depth); fabric chair: automatic lumbar support
Warranty: 3 years (covers manufacturing defects)Lifetime

Which is cheaper, the SIHOO Doro C300 Ultra V2 or the KI Altus?

The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $881 for the KI Altus at the brand stores (Oct 2026).

Which has a headrest?

Both: the SIHOO Doro C300 Ultra V2 as standard and the KI Altus as standard.