SIHOO Doro S300 vs Autonomous ErgoChair Ultra 2

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

Autonomous

Autonomous ErgoChair Ultra 2

$449

$550.99

lower starting price for Autonomous ErgoChair Ultra 2 than SIHOO Doro S300 at the brand stores

Differences at a glance

SIHOO Doro S300Autonomous ErgoChair Ultra 2

Price: $999.99$449
Seat height: 47 – 55.5 cm (18.50 – 21.85 in)18–23 in
Seat depth: 40 – 47 cm (15.75 – 18.50 in)18–20.5 in
Load capacity: 330 lb (≈ 150 kg)320 lb
Recline: Recline Angles: 100°, 110°, 130°25°
Headrest: Soft, integrated headrest; upper backrest adjusts in 5 levelsoptional
Warranty: 3 yearslifetime

Which is cheaper, the SIHOO Doro S300 or the Autonomous ErgoChair Ultra 2?

The Autonomous ErgoChair Ultra 2 is cheaper to start: $449 versus $999.99 for the SIHOO Doro S300 at the brand stores (Oct 2026).

Which has a higher weight capacity?

The SIHOO Doro S300, rated for 330 lb versus 320 lb for the Autonomous ErgoChair Ultra 2.

Which has a headrest?

Both: the SIHOO Doro S300 as standard and the Autonomous ErgoChair Ultra 2 as an option.