Herman Miller Aeron vs KI Torsion Air

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

Herman Miller

Herman Miller Aeron

$1,775 – $2,840

KI Torsion Air

$904 – $944

$871

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

Differences at a glance

Herman Miller AeronKI Torsion Air

Price: $1,775 – $2,840$904 – $944
Seat height: 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)18–23 in (45.7–58.4 cm)
Seat depth: 16 / 17 / 18.5 in (40.6 / 43.2 / 47.0 cm)18.5 in (47.0 cm)
Recline: Harmonic 2 Tilt; options: Standard/Basic tilt, Tilt Limiter, Tilt Limiter with Seat AngleTorsion flex back; gradually increasing resistance over the full 12 degrees of back flex
Arms: Arm 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)Arms or armless
Warranty: 12-year, 3-shift warranty, with limited exceptionsLifetime

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

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