SIHOO Doro S300 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 S300

$999.99

FlexiSpot

FlexiSpot OC3

$269.99

$730

lower starting price for FlexiSpot OC3 than SIHOO Doro S300 at the brand stores

Differences at a glance

SIHOO Doro S300FlexiSpot OC3

Price: $999.99$269.99
Seat height: 47 – 55.5 cm (18.50 – 21.85 in)18.5–22.4 in (47-57 cm)
Seat depth: 40 – 47 cm (15.75 – 18.50 in)15.9 in (40 cm)
Load capacity: 330 lb (≈ 150 kg)300 lb (136 kg)
Recline: Recline Angles: 100°, 110°, 130°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: Soft, integrated headrest; upper backrest adjusts in 5 levels2D headrest; 2.1" height and 30° rotation
Lumbar support: Dual dynamic lumbar support; angle 90°-105° fine-tuned with the gas lift1.9" Height Adjustable
Warranty: 3 years5 Years

From 0 SIHOO Doro S300 and 2 FlexiSpot OC3 user reviews, most mentioned first. Green is liked, orange is a caution.

Which is cheaper, the SIHOO Doro S300 or the FlexiSpot OC3?

The FlexiSpot OC3 is cheaper to start: $269.99 versus $999.99 for the SIHOO Doro S300 at the brand stores (Oct 2026).

Which has a headrest?

Both: the SIHOO Doro S300 as standard and the FlexiSpot OC3 as standard.

What do owners mention most?

Breathability for the SIHOO Doro S300, and price and value for the FlexiSpot OC3, based on review summaries.