KI Altus vs FlexiSpot Standard Ergo Office Chair (C4)

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

KI Altus

$881 – $1,516

FlexiSpot

FlexiSpot Standard Ergo Office Chair (C4)

$219.99 – $239.99

$661.01

lower starting price for FlexiSpot Standard Ergo Office Chair (C4) than KI Altus at the brand stores

Differences at a glance

KI AltusFlexiSpot Standard Ergo Office Chair (C4)

Price: $881 – $1,516$219.99 – $239.99
Seat height: 17–21.75 in (43.2–55.2 cm); 16.25–20.75 in (41.3–52.7 cm)17.91–20.87 in
Seat depth: 17.25–19.75 in (43.8–50.2 cm); 15.5–18 in (39.4–45.7 cm)19.49 in
Load capacity: supports up to 400 pounds300 lb
Arms: Adjustable arms, fixed arms, or armless3D
Headrest: Headrest available (Mesh Task / Fabric Task Headrest Adjustable Armchair)3D
Lumbar support: Mesh chair: optional adjustable lumbar (height and depth); fabric chair: automatic lumbar supportfixed
Warranty: Lifetime5 years

Which is cheaper, the KI Altus or the FlexiSpot Standard Ergo Office Chair (C4)?

The FlexiSpot Standard Ergo Office Chair (C4) is cheaper to start: $219.99 versus $881 for the KI Altus at the brand stores (Sep 2026).

Which has a headrest?

Both: the KI Altus as standard and the FlexiSpot Standard Ergo Office Chair (C4) as standard.