Herman Miller Mirra 2 vs X-Chair X3

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

Herman Miller

Herman Miller Mirra 2

$1,365 – $1,915

X-Chair

X-Chair X3

$979

$386

lower starting price for X-Chair X3 than Herman Miller Mirra 2 at the brand stores

Differences at a glance

Herman Miller Mirra 2X-Chair X3

Price: $1,365 – $1,915$979
Seat height: 16–20.5 in standard; 14.75–19 in low; 16.75–22.25 in extended17.69–22 in
Seat depth: 16.25 in fixed; 16.25–18 in adjustable16.75–19.25 in
Load capacity: 350 lb (159 kg)275 lb (125 kg)
Recline: Harmonic 2 Tilt; options: Standard Tilt, Tilt Limiter, Tilt Limiter with Seat AngleSciFloat Infinite Recline + Tilt Lock and Tension allows you to recline and lock into position or increase tension in your recline motion for more fluid movement.
Arms: Options: No Arms, Fixed Arms, Fully Adjustable 4D Arms4-Dimensional armrests come standard (up, down, side-to-side, front-to-back); option to upgrade to FS 360 rotational armrests; Armrest Height 5.875in - 8.875in
Lumbar support: PostureFit Sacral-Support Standard; Adjustable Lumbar-Support OptionalDynamic Variable Lumbar (DVL)® Support; height adjustable backrest raises the DVL®
Warranty: 12-year, 3-shift warranty, with limited exceptions5 years (all parts and materials); 15 years (non-moving metal components, chair frame)

Which is cheaper, the Herman Miller Mirra 2 or the X-Chair X3?

The X-Chair X3 is cheaper to start: $979 versus $1,365 for the Herman Miller Mirra 2 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The Herman Miller Mirra 2, rated for 350 lb versus 275 lb for the X-Chair X3.

What do owners mention most?

Comfort for the Herman Miller Mirra 2, and comfort for the X-Chair X3, based on review summaries.