Vitra ID Soft vs SIHOO Doro C300 Ultra V2

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

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

2 years

longer warranty on Vitra ID Soft than SIHOO Doro C300 Ultra V2 (official terms)

Differences at a glance

Vitra ID SoftSIHOO Doro C300 Ultra V2

Price: From $995$679.99 – $689.99
Seat height: 400–520 mm (15¾″–20½″), measured with 64 kg load; 450 mm (17¾″) fixed seat height47.5–55.5 cm (≈ 18.7-21.9 in)
Seat depth: 400–450 mm; 380 mm16.9–18.5 in (≈ 43-47 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.Recline Angles 105°, 120°, 135°
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″)8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Warranty: 5 years (Vitra Inc. Limited Warranty, sales via the Vitra online shop)3 years (covers manufacturing defects)

Which is cheaper, the Vitra ID Soft or the SIHOO Doro C300 Ultra V2?

The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $995 for the Vitra ID Soft at the brand stores (Oct 2026).