X-Chair X4 vs Vitra ID Soft

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

Vitra

Vitra ID Soft

From $995

1.3 in

more seat-height adjustment on Vitra ID Soft than X-Chair X4 (official specs)

Differences at a glance

X-Chair X4Vitra ID Soft

Price: $1,199 – $1,249From $995
Seat height: 17.5–20.88 in400–520 mm (15¾″–20½″), measured with 64 kg load; 450 mm (17¾″) fixed seat height
Seat depth: 17.75–19.75 in400–450 mm; 380 mm
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.FlowMotion mechanism, lockable in upright sitting position, optional synchronised forward tilt; or optional AutoMotion mechanism with automatic weight adjustment and two backrest tension settings (hard or soft). No recline angle published.
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 - 8.875in2D armrests (height, width) or 3D armrests (height, width, depth, 360° swivel); ring armrests for conference use; also without armrests. Armrest height above seat 195–295 mm (7¾″–11½″)
Warranty: 5 years (all parts and materials); 15 years (non-moving metal components, chair frame)5 years (Vitra Inc. Limited Warranty, sales via the Vitra online shop)

Which is cheaper, the X-Chair X4 or the Vitra ID Soft?

The Vitra ID Soft is cheaper to start: $995 versus $1,199 for the X-Chair X4 at the brand stores (Sep 2026).

What do owners mention most?

Back support for the X-Chair X4, and price and value for the Vitra ID Soft, based on review summaries.