KI Altus vs SIHOO M57

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

KI Altus

$881 – $1,516

SIHOO

SIHOO M57

$319.99

$561.01

lower starting price for SIHOO M57 than KI Altus at the brand stores

Differences at a glance

KI AltusSIHOO M57

Price: $881 – $1,516$319.99
Seat height: 17–21.75 in (43.2–55.2 cm); 16.25–20.75 in (41.3–52.7 cm)46–55 cm (≈ 18.1-21.7 in)
Seat depth: 17.25–19.75 in (43.8–50.2 cm); 15.5–18 in (39.4–45.7 cm)18.11 in (≈ 46 cm)
Load capacity: supports up to 400 pounds330 lb (≈ 150 kg)
Arms: Adjustable arms, fixed arms, or armless3D coordinated armrests (up and down, left and right, forward and backward)
Headrest: Headrest available (Mesh Task / Fabric Task Headrest Adjustable Armchair)Headrest adjusts vertically up to 3.9 inches and rotates 45 degrees
Lumbar support: Mesh chair: optional adjustable lumbar (height and depth); fabric chair: automatic lumbar supportDual-adjustable lumbar support (vertical and horizontal)
Warranty: Lifetime3 years

Which is cheaper, the KI Altus or the SIHOO M57?

The SIHOO M57 is cheaper to start: $319.99 versus $881 for the KI Altus at the brand stores (Sep 2026).

Which has a headrest?

Both: the KI Altus as standard and the SIHOO M57 as standard.