Vitra ID Soft vs Knoll Life Chair

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

Vitra

Vitra ID Soft

From $995

Knoll

Knoll Life Chair

From $1,947

$952

lower starting price for Vitra ID Soft than Knoll Life Chair at the brand stores

Differences at a glance

Vitra ID SoftKnoll Life Chair

Price: From $995From $1,947
Seat height: 400–520 mm (15¾″–20½″), measured with 64 kg load; 450 mm (17¾″) fixed seat height16.5–21.75 in (42-55 cm); 17" – 22.25"; 17.25–22.5 in (44-57 cm); 15.5" – 19.25"
Seat depth: 400–450 mm; 380 mm15–19 in (38-48 cm)
Recline: 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.Angle Between Seat and Back 95° - 119°; Tilt Range of Back 24°
Arms: 2D 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″)Arms available in fixed height, height-adjustable or high performance; high performance arms adjust 2.5" in armpad width (1.25" per side) and 3" armpad fore/aft movement; Arm Height from Floor 23.25" - 32.75" (height adjustable / high performance); 26.24" – 31.25" (fixed arm)
Warranty: 5 years (Vitra Inc. Limited Warranty, sales via the Vitra online shop)Structural components: 12 Years; Upholstery, textiles, leathers, finishes: 3 Years

From 4 Vitra ID Soft and 4 Knoll Life Chair user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the Vitra ID Soft or the Knoll Life Chair?

The Vitra ID Soft is cheaper to start: $995 versus $1,947 for the Knoll Life Chair at the brand stores (Oct 2026).

What do owners mention most?

Price and value for the Vitra ID Soft, and design for the Knoll Life Chair, based on review summaries.