KI Altus vs FlexiSpot OC3

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 OC3

$269.99

$611.01

lower starting price for FlexiSpot OC3 than KI Altus at the brand stores

Differences at a glance

KI AltusFlexiSpot OC3

Price: $881 – $1,516$269.99
Seat height: 17–21.75 in (43.2–55.2 cm); 16.25–20.75 in (41.3–52.7 cm)18.5–22.4 in (47-57 cm)
Seat depth: 17.25–19.75 in (43.8–50.2 cm); 15.5–18 in (39.4–45.7 cm)15.9 in (40 cm)
Load capacity: supports up to 400 pounds300 lb (136 kg)
Arms: Adjustable arms, fixed arms, or armless2D; 3.9" height adjustment
Headrest: Headrest available (Mesh Task / Fabric Task Headrest Adjustable Armchair)2D headrest; 2.1" height and 30° rotation
Lumbar support: Mesh chair: optional adjustable lumbar (height and depth); fabric chair: automatic lumbar support1.9" Height Adjustable
Warranty: Lifetime5 Years

Which is cheaper, the KI Altus or the FlexiSpot OC3?

The FlexiSpot OC3 is cheaper to start: $269.99 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 OC3 as standard.

What do owners mention most?

Back support for the KI Altus, and price and value for the FlexiSpot OC3, based on review summaries.