FlexiSpot OC3 vs SIHOO Doro S100

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 S100

$499.99 – $509.99

$230

lower starting price for FlexiSpot OC3 than SIHOO Doro S100 at the brand stores

Differences at a glance

FlexiSpot OC3SIHOO Doro S100

Price: $269.99$499.99 – $509.99
Seat height: 18.5–22.4 in (47-57 cm)46–54 cm
Seat depth: 15.9 in (40 cm)15.15–17.12 in (≈ 38.5-43.5 cm)
Load capacity: 300 lb (136 kg)330 lb (≈ 150 kg)
Recline: 90–130°Reclines up to 135°
Arms: 2D; 3.9" height adjustment4D 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°
Headrest: 2D headrest; 2.1" height and 30° rotationIntegrated headrest adjusts up or down; upper backrest in five levels
Lumbar support: 1.9" Height AdjustableDual dynamic lumbar support
Warranty: 5 Years3 years

Which is cheaper, the FlexiSpot OC3 or the SIHOO Doro S100?

The FlexiSpot OC3 is cheaper to start: $269.99 versus $499.99 for the SIHOO Doro S100 at the brand stores (Sep 2026).

Which has a headrest?

Both: the FlexiSpot OC3 as standard and the SIHOO Doro S100 as standard.