SIHOO Doro S100 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.

SIHOO

SIHOO Doro S100

$499.99 – $509.99

SIHOO

SIHOO Doro C300 Ultra V2

$679.99 – $689.99

$180

lower starting price for SIHOO Doro S100 than SIHOO Doro C300 Ultra V2 at the brand stores

Differences at a glance

SIHOO Doro S100SIHOO Doro C300 Ultra V2

Price: $499.99 – $509.99$679.99 – $689.99
Seat height: 46–54 cm47.5–55.5 cm (≈ 18.7-21.9 in)
Seat depth: 15.15–17.12 in (≈ 38.5-43.5 cm)16.9–18.5 in (≈ 43-47 cm)
Load capacity: 330 lb (≈ 150 kg)330 lb (≈ 150 kg)
Recline: Reclines up to 135°Recline Angles 105°, 120°, 135°
Arms: 4D coordinated armrests (Up and down, left, right, forward and backward, tilt linkage); Up and down 2.76 in, forward and back 1.18 in, side to side, rotate 72°8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Headrest: Integrated headrest adjusts up or down; upper backrest in five levelsUltra-wide 3D headrest, adjusts in three directions
Lumbar support: Dual dynamic lumbar supportDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: 3 years3 years (covers manufacturing defects)

Which is cheaper, the SIHOO Doro S100 or the SIHOO Doro C300 Ultra V2?

The SIHOO Doro S100 is cheaper to start: $499.99 versus $679.99 for the SIHOO Doro C300 Ultra V2 at the brand stores (Oct 2026).

Which has a higher weight capacity?

Neither. Both are rated for 330 lb in their official specifications.

Which has a headrest?

Both: the SIHOO Doro S100 as standard and the SIHOO Doro C300 Ultra V2 as standard.