X-Chair X3 vs Autonomous ErgoChair Core

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

X-Chair

X-Chair X3

$979

Autonomous

Autonomous ErgoChair Core

$299

$680

lower starting price for Autonomous ErgoChair Core than X-Chair X3 at the brand stores

Differences at a glance

X-Chair X3Autonomous ErgoChair Core

Price: $979$299
Seat height: 17.69–22 in20–23.8 in
Seat depth: 16.75–19.25 in18.5–20.5 in
Load capacity: 275 lb (125 kg)242.5 lb
Recline: SciFloat 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.40°
Arms: 4-Dimensional armrests come standard (up, down, side-to-side, front-to-back); option to upgrade to FS 360 rotational armrests; Armrest Height 5.875in - 8.875in3D
Headrest: Optional add-on (standard configuration: No headrest; Headrest +$115)yes
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)2 years

Which is cheaper, the X-Chair X3 or the Autonomous ErgoChair Core?

The Autonomous ErgoChair Core is cheaper to start: $299 versus $979 for the X-Chair X3 at the brand stores (Sep 2026).

Which has a headrest?

Both: the X-Chair X3 as an option and the Autonomous ErgoChair Core as standard.