X-Chair X3 vs Autonomous ErgoChair Ultra 2

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 Ultra 2

$449

$530

lower starting price for Autonomous ErgoChair Ultra 2 than X-Chair X3 at the brand stores

Differences at a glance

X-Chair X3Autonomous ErgoChair Ultra 2

Price: $979$449
Seat height: 17.69–22 in18–23 in
Seat depth: 16.75–19.25 in18–20.5 in
Load capacity: 275 lb (125 kg)320 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.25°
Headrest: Optional add-on (standard configuration: No headrest; Headrest +$115)optional
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)lifetime

Which is cheaper, the X-Chair X3 or the Autonomous ErgoChair Ultra 2?

The Autonomous ErgoChair Ultra 2 is cheaper to start: $449 versus $979 for the X-Chair X3 at the brand stores (Sep 2026).

Which has a higher weight capacity?

The Autonomous ErgoChair Ultra 2, rated for 320 lb versus 275 lb for the X-Chair X3.

Which has a headrest?

Both: the X-Chair X3 as an option and the Autonomous ErgoChair Ultra 2 as an option.