KI Torsion Air vs Herman Miller Aeron

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

KI Torsion Air

$904 – $944

Herman Miller

Herman Miller Aeron

$1,775 – $2,840

$871

lower starting price for KI Torsion Air than Herman Miller Aeron at the brand stores

Differences at a glance

KI Torsion AirHerman Miller Aeron

Price: $904 – $944$1,775 – $2,840
Seat height: 18–23 in (45.7–58.4 cm)14.4–19.3 in (36.6–49 cm); 14.8–22.8 in (37.6–57.9 cm); 15.8–22.8 in (40.1–57.9 cm)
Seat depth: 18.5 in (47.0 cm)16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)
Recline: Torsion flex back; gradually increasing resistance over the full 12 degrees of back flexHarmonic 2 Tilt; options: Standard/Basic tilt, Tilt Limiter, Tilt Limiter with Seat Angle
Arms: Arms or armlessArm height 7.5–11.5 in (adjustable arms); 8.5 in (fixed arms); Options: Fully Adjustable Arms, Height-Adjustable Arms with Pivot, Height-Adjustable Arms, No Arms, Stationary Arms; Arm Height 7.5–11.5 in (Fully Adjustable Arms, specs page)
Warranty: Lifetime12-year, 3-shift warranty, with limited exceptions

Which is cheaper, the KI Torsion Air or the Herman Miller Aeron?

The KI Torsion Air is cheaper to start: $904 versus $1,775 for the Herman Miller Aeron at the brand stores (Sep 2026).