X-Chair X4 vs Knoll Pollock Executive Chair

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

X-Chair

X-Chair X4

$1,199 – $1,249

Knoll

Knoll Pollock Executive Chair

$2,901 – $4,396

$1,702

lower starting price for X-Chair X4 than Knoll Pollock Executive Chair at the brand stores

Differences at a glance

X-Chair X4Knoll Pollock Executive Chair

Price: $1,199 – $1,249$2,901 – $4,396
Seat height: 17.5–20.88 in18.5–21.25 in (47-54 cm)
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.Base features 360 degree swivel, tilt with tension and pneumatic seat height adjustment
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 - 8.875inPlastic arms; Arm Height 24½-27¼ in
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)5-year warranty

Which is cheaper, the X-Chair X4 or the Knoll Pollock Executive Chair?

The X-Chair X4 is cheaper to start: $1,199 versus $2,901 for the Knoll Pollock Executive Chair at the brand stores (Sep 2026).

What do owners mention most?

Back support for the X-Chair X4, and design for the Knoll Pollock Executive Chair, based on review summaries.