FlexiSpot OC3 vs SIHOO Doro C300 Pro V2

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

FlexiSpot

FlexiSpot OC3

$269.99

SIHOO

SIHOO Doro C300 Pro V2

$499.99 – $549.99

$230

lower starting price for FlexiSpot OC3 than SIHOO Doro C300 Pro V2 at the brand stores

Differences at a glance

FlexiSpot OC3SIHOO Doro C300 Pro V2

Price: $269.99$499.99 – $549.99
Seat height: 18.5–22.4 in (47-57 cm)17.5–20.9 in
Seat depth: 15.9 in (40 cm)Seat Depth 16.9" - 18.5"
Load capacity: 300 lb (136 kg)330 lb (≈ 150 kg)
Recline: 90–130°Recline Angles 105°, 120°, 135°
Arms: 2D; 3.9" height adjustment8D Bionic Armrests (up, down, forward, back, rotate, or tilt)
Headrest: 2D headrest; 2.1" height and 30° rotationUltra-wide 3D headrest, adjusts in three directions
Lumbar support: 1.9" Height AdjustableDomino™ Sacral-Lumbar Support 2.0: moves up or down, 3 support levels
Warranty: 5 Years3 years (covers manufacturing defects)

Which is cheaper, the FlexiSpot OC3 or the SIHOO Doro C300 Pro V2?

The FlexiSpot OC3 is cheaper to start: $269.99 versus $499.99 for the SIHOO Doro C300 Pro V2 at the brand stores (Sep 2026).

Which has a headrest?

Both: the FlexiSpot OC3 as standard and the SIHOO Doro C300 Pro V2 as standard.