SIHOO Doro C300 Pro vs FlexiSpot OC3

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

SIHOO

SIHOO Doro C300 Pro

$789.99 – $839.99

FlexiSpot

FlexiSpot OC3

$269.99

$520

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

Differences at a glance

SIHOO Doro C300 ProFlexiSpot OC3

Price: $789.99 – $839.99$269.99
Seat height: 46–56.7 cm18.5–22.4 in (47-57 cm)
Seat depth: 16.81–17.76 in (≈ 42.7-45.1 cm)15.9 in (40 cm)
Load capacity: 330 lb (≈ 150 kg)300 lb (136 kg)
Recline: Maximum recline angle of 135°90–130°
Arms: 6D coordinated armrests (up and down, left and right, front and back, inward and outward, with tilt-lock of armrests, and synchronized recline)2D; 3.9" height adjustment
Headrest: Headrest adjusts up and down, back and forth, or rotates2D headrest; 2.1" height and 30° rotation
Lumbar support: Lumbar support automatically conforms to your spine (BM Tracking System)1.9" Height Adjustable
Warranty: 3 years5 Years

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

The FlexiSpot OC3 is cheaper to start: $269.99 versus $789.99 for the SIHOO Doro C300 Pro at the brand stores (Oct 2026).

Which has a headrest?

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