SIHOO Doro C300 Ultra V2 vs Knoll Life Chair

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

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

Knoll

Knoll Life Chair

From $1,947

$1,267.01

lower starting price for SIHOO Doro C300 Ultra V2 than Knoll Life Chair at the brand stores

Differences at a glance

SIHOO Doro C300 Ultra V2Knoll Life Chair

Price: $679.99 – $689.99From $1,947
Seat height: 47.5–55.5 cm (≈ 18.7-21.9 in)16.5–21.75 in (42-55 cm); 17" – 22.25"; 17.25–22.5 in (44-57 cm); 15.5" – 19.25"
Seat depth: 16.9–18.5 in (≈ 43-47 cm)15–19 in (38-48 cm)
Recline: Recline Angles 105°, 120°, 135°Angle Between Seat and Back 95° - 119°; Tilt Range of Back 24°
Arms: 8D Bionic Armrests (up, down, forward, back, rotate, or tilt)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)
Headrest: Ultra-wide 3D headrest, adjusts in three directionsOptional headrest measures 9"W x 6" - 9"H
Lumbar support: Domino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levelsLumbar Support (Fixed) 7.5"; optional height adjustable lumbar (Exceeds 5.5" - 9.8"), 11.5" x 5.5"
Warranty: 3 years (covers manufacturing defects)Structural components: 12 Years; Upholstery, textiles, leathers, finishes: 3 Years

Which is cheaper, the SIHOO Doro C300 Ultra V2 or the Knoll Life Chair?

The SIHOO Doro C300 Ultra V2 is cheaper to start: $679.99 versus $1,947 for the Knoll Life Chair at the brand stores (Oct 2026).

Which has a headrest?

Both: the SIHOO Doro C300 Ultra V2 as standard and the Knoll Life Chair as an option.